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WO2017063501A1 - 乘用车门锁控制装置 - Google Patents

乘用车门锁控制装置 Download PDF

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Publication number
WO2017063501A1
WO2017063501A1 PCT/CN2016/100488 CN2016100488W WO2017063501A1 WO 2017063501 A1 WO2017063501 A1 WO 2017063501A1 CN 2016100488 W CN2016100488 W CN 2016100488W WO 2017063501 A1 WO2017063501 A1 WO 2017063501A1
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WO
WIPO (PCT)
Prior art keywords
door lock
control unit
main control
output
relay
Prior art date
Application number
PCT/CN2016/100488
Other languages
English (en)
French (fr)
Inventor
夏大卫
马永军
Original Assignee
联合汽车电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201510672533.9A external-priority patent/CN106593148B/zh
Priority claimed from CN201510671700.8A external-priority patent/CN106593147B/zh
Application filed by 联合汽车电子有限公司 filed Critical 联合汽车电子有限公司
Priority to GB1806778.5A priority Critical patent/GB2557850B/en
Publication of WO2017063501A1 publication Critical patent/WO2017063501A1/zh

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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00944—Details of construction or manufacture

Definitions

  • the present invention relates to the field of automotive electronics, and more particularly to a door lock control device for a passenger car.
  • the existing door lock control device (referred to as the door control) on the existing passenger car usually adopts the control mode as shown in FIG. 1 when controlling the unlocking, locking or super lock. That is, the door lock control device collects control signals sent by the user, such as a door lock central control switch, a wireless key signal, a mechanical lock cylinder switch, etc., and the main control unit (hereinafter referred to as MCU) in the door lock control device is based on the collected signal. After the logic operation is performed by the software, a driving signal is sent to the relay module, and the voltage/current is outputted by the relay module, and the door lock motor performs a corresponding locking, unlocking or super-locking action.
  • MCU main control unit
  • the defects of the existing control methods of the door lock control device mainly have the following two defects:
  • MCU all control functions depend on the core device MCU. If the MCU fails or its internal software program fails (MCU fails), the gate will lose the drive control of the motor (Motor, shown as M). This kind of situation is called the failure mode of the door lock. In the failure mode, if there is a situation that cannot be unlocked, there is a safety hazard, such as an accident or the vehicle is about to enter the water, and the user cannot unlock the vehicle.
  • the motor drive module (relay) in the door control is mechanically viscous, if the lock drive module is stuck, the door lock motor is always driven by the locking direction, which also creates safety hazards, such as accidents or vehicles. In the case of water ingress, etc., the user cannot unlock the vehicle.
  • the technical problem to be solved by the present invention is to provide a door lock control device for a passenger car that can be safely unlocked in the event that the MCU of the passenger car door lock control device fails.
  • Another technical problem to be solved by the present invention is to provide a MCU for a passenger car door lock control device.
  • a door lock control device that can be safely unlocked in the event of mechanical viscous failure of the motor drive module (relay) in the passenger car door.
  • the invention provides a door lock control device for a passenger car with an ignition switch, comprising: a door lock relay having two input ends, a lock output end and an unlock output end; a main control unit, Generating a main control unit status signal indicating whether the main control unit has failed and inputting to the two inputs of the door lock relay and for controlling the locking and unlocking outputs of the door lock relay a flat logic control command, a forced unlocking module, two inputs connected to the door lock relay, and an open or closed state signal for receiving the ignition switch; and a system base chip for receiving the main control a unit status signal, and when the main control unit fails, generating an unlock enable signal to the forced unlocking module, wherein when the forced unlocking module simultaneously receives the unlocking enable signal and the ignition switch When the status signal is turned off, the door lock relay is forced to unlock.
  • the door lock control device of the present invention further comprises: an acquisition circuit connected to the lock output end and the unlock output end of the door lock relay, wherein the acquisition circuit is configured to detect the lock output end of the door lock relay And unlocking the level of the output and transmitting the level of the locked output to the main control unit, the main control unit controls the level of the locked output and the logic of the main control unit The instructions are compared, and the main control unit controls whether the door lock relay is unlocked according to the comparison result.
  • the main control unit forcibly At the same time, the locked output end and the unlocked output end of the door lock relay are set to a high level.
  • the system base chip is further configured to generate a reset signal to the main control unit when the main control unit fails.
  • the collecting circuit collects the levels of the locked output end and the unlocked output end of the door lock relay by using an interrupt input.
  • the sampling time interval of the acquisition circuit is less than or equal to 10 ms.
  • the acquisition circuit includes: a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode, and a second diode, and one end of the first resistor serves as the first of the acquisition circuit
  • An acquisition end, the other end of the first resistor serves as a first output end of the acquisition circuit and is grounded through the third resistor; one end of the second resistor serves as a second collection end of the acquisition circuit, and the The other end of the two resistors serves as a second output end of the collector circuit and is grounded through the fourth resistor;
  • the first collecting end is grounded through the first diode, and the second collecting end passes the first Two diodes are grounded, the first collecting end is connected to the locking output end of the door lock relay, the second collecting end is connected to the unlocking output end of the door lock relay, the first output end and the second end
  • the output is connected to the main control unit.
  • the main control unit sends the main control unit status signal to the system base chip at a set time interval, and if the system base chip fails to receive the main control unit status signal, the system basic chip Determining that the main control unit is faulty, resetting the main control unit and recording the reset; if the system control chip receives the main control unit status signal after the main control unit is reset, clearing the reset record of the main control unit If the system control chip still cannot receive the main control unit status signal after the main control unit is reset, the forced unlock mode is started until the system base chip receives the main control unit status signal; During the mode and the ignition switch is in a closed state, the system base chip controls the forced unlocking module to force the door lock relay to unlock.
  • the forced unlocking module includes a pulse generator for receiving the unlocking enable signal from the system base chip and outputting a driving signal to the door lock relay.
  • the system base chip further includes a state timing detecting circuit, and the state timing detecting circuit is configured to detect whether the main control unit is invalid.
  • the system base chip provides a power source to the main control unit.
  • the existing passenger car door lock control device MCU directly collects the input signal, converts it into a logic output, drives the output circuit, and the door lock control function.
  • Existing passenger car door lock control device if the MCU fails, the user will directly lose these functions and reduce the satisfaction; if the door is locked The MCU fails and directly loses the electric unlocking function, causing the user to be locked in the car. The above two situations also cause safety hazards in the user's trapped car.
  • the passenger car door lock control device provided by the invention can firstly avoid the erroneous locking caused by the failure of the driving device for the detection of the door lock driving device.
  • the system base chip is used to monitor the MCU, monitor the MCU status (whether it is invalid), and can force the unlock module to be unlocked by the system base chip combined with the forced unlock mode. After the MCU fails, the forced unlock module can enter the effective mode to ensure unlocking. The function prevents the user from being locked in the car, avoids safety hazards and improves vehicle safety.
  • the present invention also provides another passenger car door lock control device.
  • the door lock control device adds an acquisition circuit based on the above-mentioned passenger car door lock control device, and the MCU will receive the level detection through the two output terminals of the door lock relay.
  • the level of the relay output to the MCU logic control command is compared to determine whether the relay is stuck.
  • the MCU controls whether the door lock relay is unlocked according to the comparison result.
  • the second passenger car door lock control device of the invention can safely unlock when the MCU of the passenger car door lock control device fails or the motor drive module (relay) of the passenger car door is mechanically stuck, thereby ensuring the unlocking function and preventing the user from being locked. Locking in the car, avoiding safety hazards and improving vehicle safety.
  • FIG. 1 is a schematic structural view of a conventional passenger car door lock control device.
  • FIG. 2 is a schematic structural view of a passenger car door lock control device according to a first embodiment of the present invention.
  • FIG. 3 is a schematic diagram of pin assignment of an embodiment of a system based chip.
  • FIG. 4 is a schematic structural view of a passenger car door lock control device according to a second embodiment of the present invention.
  • Fig. 5 is a schematic structural view of a passenger car door lock control device according to a third embodiment of the present invention.
  • FIG. 6 is a schematic structural view of an embodiment of an acquisition circuit of the present invention.
  • FIG. 7 is a schematic structural diagram of a forced unlocking module according to a fourth embodiment of the present invention.
  • Door lock bridge relay two input terminals A, B
  • Door lock bridge relay two output terminals C, D
  • the present invention provides a passenger car door lock control device that can be safely unlocked in the event that a main control unit (MCU) of a passenger car door lock control device fails.
  • MCU main control unit
  • SBC system base chip
  • the MCU is connected to the system base chip SBC through a Serial Peripheral Interface (SPI) bus and a RESET control line.
  • SPI Serial Peripheral Interface
  • the system base chip SBC is used to generate an unlock enable signal and transmit the signal to the forced unlock module through the enable signal line.
  • the forced unlocking module is connected to the input terminals A, B of the door lock bridge relay.
  • the door lock control device provided by the invention is used for a passenger car having an ignition switch, wherein one end of the ignition switch is connected to the KL30 power supply, and the other end is connected to the forced unlocking module, and the forced unlocking module is further configured to receive the opening of the ignition switch (ignition) ) or off (extinguished) state.
  • the system base chip adopts the IC chip UJA107X series produced by NXP Semiconductors (NXP).
  • Pin 9,10,11 is the SPI bus pin, connected to the MCU's SPI interface
  • pin 6 is the reset pin (RESET), connected to the MCU reset pin (RESET)
  • pin 17 is enabled Signal pins, thus achieving the basic connection of the system base chip in this application.
  • the pins other than the above have other functions in the system base chip, because they are not directly related to the "forced unlock function" proposed in this application, and belong to the inherent pin of the chip (usually used, as shown in Table 1). Narration.
  • the SPI bus is used by the MCU to set parameters and transmit MCU status signals to the system base chip, the RESET control line transmits a reset signal, and the enable signal line transmits an unlock enable signal.
  • the system base chip has an MCU state timing detection circuit (Time) Counter, TC) and can provide 5V power to the MCU.
  • the system base chip can detect whether the MCU is invalid and provide an MCU reset signal, and the system base chip determines whether to output an unlock signal to the forced unlock module according to whether the MCU is inactive and the ignition switch ON state (ie, the ignition switch is turned on or off).
  • the MCU sends an MCU status signal to the system base chip via the SPI bus at a set time interval (using Watchdog inspection). If the system base chip times out without receiving the MCU status signal (equivalent to feeding the dog signal), the system The base chip judges the MCU fault/software fault (ie, the MCU fails), resets the MCU for the first time through the RESET control line and records the reset; if the system base chip receives the MCU status signal after the first MCU reset, the first time is cleared.
  • the forced unlock mode is activated until the system base chip receives the MCU status signal; during the forced unlock mode and the ignition switch is in the ON position (ie, the ignition The switch is in the open state), and the system base chip controls the forced unlocking of the door lock bridge relay by controlling the forced unlocking module.
  • the forced unlocking function is completed by a forced unlocking module. Its input is derived from the control signal provided by the system base chip and the ignition switch ON input. Its output directly controls the unlocking relay. When the system base chip detects that the MCU is invalid, after the control signal is given, if the vehicle is in the ON position at this time, the forced unlocking module forcibly outputs a 500ms high level to the unlocking relay, so that the gating completes the forced unlocking function under the MCU failure. .
  • An embodiment further includes: an acquisition circuit (Monitor), the MCU is connected to the two input terminals A and B of the door lock bridge relay, and the acquisition circuit is connected to the two output terminals C and D of the door lock bridge relay, wherein the output Terminal C is the locked output terminal, and output terminal D is the unlocking output terminal.
  • the acquisition circuit collects the relay output terminal level and feeds back to the MCU; the MCU compares the received relay output terminal level with the MCU logic control command, MCU According to the comparison result, it is controlled whether the door lock bridge relay is unlocked.
  • the acquisition circuit can detect the level of the output of the door lock bridge relay (for example, a high level) and send the output level to the MCU, and the MCU will receive the level of the output of the door lock bridge relay and the MCU logic.
  • the control command (whether or not the output high level is required) is compared, and the MCU controls whether the door lock bridge relay is unlocked according to the comparison result.
  • the MCU forcibly simultaneously turns on the two output terminals C and D of the door lock bridge relay to make the two output ends C, D equipotential.
  • the motor runs for a very small time (generally less than 100ms), the actual mechanical structure can be locked. Therefore, it is best to use the interrupt input for the relay high-level feedback port, or the sampling time is very short, and then take it immediately. Measures to maintain the equipotential at both ends of the bridge circuit.
  • the interrupt input used here is the principle of the single-chip microcomputer, that is, the command commands required to perform various operations. After the equipotential at both ends of the motor, the gate can also try to recover the strategy. First, the output of the lock relay is turned off, and the feedback is detected as low level, indicating that the lock relay is not sticky, and then the unlock relay output is turned off, and then the system returns to normal, and the unlock function can be used again.
  • the high-level output terminal of the door lock bridge relay adopts an interrupt input, or the acquisition circuit adopts a form in which the sampling time interval is less than or equal to 10 ms.
  • the passenger car door lock control device does not include the system base chip and the forced unlock module.
  • the working principle and the connection relationship of the collecting circuit are completely the same as those in the second embodiment, and details are not described herein again.
  • a specific embodiment of the acquisition circuit of the present invention has two acquisition terminals E and F and two output terminals G and H.
  • One end of the first resistor R1 serves as the first collection end of the acquisition circuit.
  • E the other end of the first resistor R1 serves as the first output terminal G of the acquisition circuit and is grounded through the third resistor R3;
  • one end of the second resistor R2 serves as the second collection terminal F of the acquisition circuit, and the other end of the second resistor R2
  • the first acquisition terminal E is grounded through the first diode D1
  • the second acquisition terminal F is grounded through the second diode D2.
  • the first collecting end E and the second collecting end F are connected to the two output ends C and D of the door lock bridge relay, and the first output end G and the second output end H output the collecting signal to the MCU. .
  • the forced unlocking module includes:
  • a power source KL15 connected to the vehicle power supply (not shown) and connected to the pulse generator;
  • An RC circuit is connected to the pulse generator, and the pulse generator receives the unlock enable signal from the system base chip and outputs the drive signal to the door lock relay through a relay coil driver (Relay Coil Driver), the door lock relay is powered by the Ubat The voltage is supplied and the motor is controlled by a door lock relay.
  • a relay coil driver Relay Coil Driver

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Abstract

一种门锁控制装置，用于具有点火开关的乘用车，包括：一门锁继电器，具有两个输入端(A，B)、一上锁输出端(C)和一解锁输出端(D)；一主控制单元(MCU)，用于表明主控制单元(MCU)是否失效的一主控制单元状态信号以及用于输入至门锁继电器的两输入端(A，B)且用于控制门锁继电器的上锁和解锁输出端的电平的逻辑控制指令；一强制解锁模块，连接门锁继电器的两输入端(A，B)，以及用于接收点火开关的打开或关闭状态信号；以及一系统基础芯片(SBC)，用于接收主控制单元状态信号，并且当主控制单元(MCU)失效时，生成一解锁能使信号至强制解锁模块，当强制解锁模块同时接收到解锁能使信号以及点火开关的关闭状态信号时，强制门锁继电器解锁。

Description

乘用车门锁控制装置 技术领域
本发明涉及汽车电子领域，特别是涉及一种乘用车的门锁控制装置。
背景技术
现有乘用车上采用主流的门锁控制装置(简称门控)在控制解锁、上锁或者超级锁时通常采用如图1所示的控制方式。即，由门锁控制装置采集用户发出的控制信号，譬如门锁中控开关，无线钥匙信号，机械锁芯开关等，门锁控制装置内的主控制单元(以下称MCU)根据采集到的信号，通过软件进行逻辑运算后，发出驱动信号到继电器模块，由继电器模块输出电压/电流，门锁电机执行相应的上锁、解锁或者超级锁动作。
现有门锁控制装置控制方式的缺陷主要存在以下两种缺陷：
一、所有控制功能都依赖于其核心器件MCU，如果MCU发生故障，或者其内在的软件程序出现故障(MCU失效)，门控会失去对门锁电机(Motor，图示为M)的驱动控制。此种情况称为门锁的失效模式，在失效模式下，如果发生不能解锁的情况则存在安全隐患，譬如事故或者车辆即将进水等情况下，造成用户不能解锁离开车辆。
二、门控内的电机驱动模块(继电器)若发生机械粘滞时，如果是上锁驱动模块粘滞，则门锁电机一直被上锁方向驱动，同样会产生安全隐患，譬如事故或者车辆即将进水等情况下，造成用户不能解锁离开车辆。
发明内容
本发明要解决的技术问题是提供一种在乘用车门锁控制装置MCU失效情况下能安全解锁的乘用车的门锁控制装置。
本发明要解决的另一个技术问题是提供一种在乘用车门锁控制装置MCU 失效或乘用车门控内电机驱动模块(继电器)发生机械粘滞情况下能安全解锁的门锁控制装置。
本发明提供的一种门锁控制装置，用于具有点火开关的乘用车，包括：一门锁继电器，具有两输入端、一上锁输出端和一解锁输出端；一主控制单元，用于生成表明所述主控制单元是否失效的一主控制单元状态信号以及用于输入至所述门锁继电器的两输入端且用于控制所述门锁继电器的所述上锁和解锁输出端的电平的逻辑控制指令，一强制解锁模块，连接所述门锁继电器的两输入端，以及用于接收所述点火开关的打开或关闭状态信号；以及一系统基础芯片，用于接收所述主控制单元状态信号,并且当所述主控制单元失效时,生成一解锁使能信号至所述强制解锁模块,其中，当所述强制解锁模块同时接收到所述解锁使能信号以及所述点火开关的关闭状态信号时，强制所述门锁继电器解锁。
优选地，本发明的门锁控制装置还包括：一采集电路，连接所述门锁继电器的上锁输出端和解锁输出端，所述采集电路用于检测所述门锁继电器的上锁输出端和解锁输出端的电平并将所述上锁输出端的电平发送至所述主控制单元,所述主控制单元将接收到的所述上锁输出端的电平与所述主控制单元的逻辑控制指令进行比较，所述主控制单元根据比较结果控制所述门锁继电器是否解锁。
优选地，当所述采集电路检测到的所述上锁输出端的电平为高电平且所述主控制单元的逻辑控制指令未要求上锁输出端输出高电平时，所述主控制单元强制同时设置所述门锁继电器的上锁输出端和解锁输出端为高电平。
优选地，所述系统基础芯片还用于当所述主控制单元失效时生成一复位信号至所述主控制单元。
优选地，所述采集电路采集所述门锁继电器的所述上锁输出端和解锁输出端的电平采用中断式输入。
优选地，所述采集电路的采样时间间隔小于等于10ms。
优选地，所述采集电路包括：第一电阻、第二电阻、第三电阻、第四电阻、第一二极管及第二二极管，所述第一电阻的一端作为该采集电路的第一采集端，所述第一电阻的另一端作为该采集电路的第一输出端并通过所述第三电阻接地；所述第二电阻的一端作为该采集电路的第二采集端，所述第二电阻的另一端作为该该集电路的第二输出端并通过所述第四电阻接地；所述第一采集端通过所述第一二极管接地，所述第二采集端通过所述第二二极管接地，所述第一采集端连接所述门锁继电器的上锁输出端，所述第二采集端连接所述门锁继电器的解锁输出端，所述第一输出端和第二输出端连接所述主控制单元。
优选地，所述主控制单元按设定时间间隔向系统基础芯片发送所述主控制单元状态信号，若所述系统基础芯片超时未接收到所述主控制单元状态信号，则所述系统基础芯片判断所述主控制单元发生故障，复位所述主控制单元并记录该复位；若所述主控制单元复位后系统基础芯片接收到所述主控制单元状态信号则清除所述主控制单元的复位记录；若所述主控制单元复位后系统基础芯片仍无法接收到所述主控制单元状态信号，则启动强制解锁模式直至所述系统基础芯片接收到所述主控制单元状态信号；在所述强制解锁模式期间且所述点火开关处于关闭状态，所述系统基础芯片控制所述强制解锁模块强制所述门锁继电器解锁。
优选地，所述强制解锁模块包括一脉冲发生器，用于接收所述系统基础芯片发出的所述解锁使能信号并输出驱动信号至所述门锁继电器。
优选地，所述系统基础芯片还包括一状态定时检测电路，所述状态定时检测电路用于检测所述主控制单元是否失效。
优选地，所述系统基础芯片向所述主控制单元提供一电源。
现有的乘用车门锁控制装置MCU直接采集输入信号，转换为逻辑输出后，驱动输出电路，门锁控制功能。现有乘用车门锁控制装置，如果MCU发生失效，用户会直接失去这些功能，降低满意度；如果在车门已锁情况下发 生MCU失效，直接失去电动解锁功能，造成用户被锁死在车内，上述两种情况还造成用户被困车内的安全隐患。
本发明提供的乘用车门锁控制装置，首先对于门锁驱动器件的检测，能有效避免驱动器件失效导致的误上锁。其次，使用系统基础芯片对MCU实施监控，监测MCU状态(是否失效)，并能通过系统基础芯片结合强制解锁模式强制解锁模块，在MCU失效后，能使该强制解锁模块进入有效模式，保证解锁功能，防止将用户锁死在车内的情况，避免安全隐患，提高了车辆安全性。
本发明还提供了另一种乘用车门锁控制装置，该门锁控制装置是在上述乘用车门锁控制装置的基础上增加采集电路，通过对门锁继电器两输出端电平检测,MCU将接收到的继电器输出端电平与MCU逻辑控制指令进行比较判断是否发生继电器粘滞，MCU根据比较结果控制门锁继电器是否开锁。本发明的第二种乘用车门锁控制装置能在乘用车门锁控制装置MCU失效或乘用车门控内电机驱动模块(继电器)发生机械粘滞情况下安全解锁，保证解锁功能，防止将用户锁死在车内的情况，避免安全隐患，提高了车辆安全性。
附图说明
下面结合附图与具体实施方式对本发明作进一步详细的说明：
图1是一种现有乘用车门锁控制装置的结构示意图。
图2是本发明提供的第一实施例的乘用车门锁控制装置的结构示意图。
图3是系统基础芯片一实施例引脚分配示意图。
图4是本发明提供的第二实施例的乘用车门锁控制装置的结构示意图。
图5是本发明提供的第三实施例的乘用车门锁控制装置的结构示意图。
图6是本发明采集电路一实施例的结构示意图。
图7是本发明提供的第四实施例的强制解锁模块的结构示意图。
附图标记说明
门锁桥式继电器两输入端A、B
门锁桥式继电器两输出端C、D
系统基础芯片SBC
定时检测电路TC
电机M
主控制单元MCU
电源KL15、KL30、Ubat
第一至第四电阻R1至R4
第一二极管D1
第二二极管D2
采集电路第一、第二采集端E、F
采集电路第一、第二输出端G、H
具体实施方式
实施例一
如图2所示，本发明提供的在乘用车门锁控制装置的主控制单元(MCU)失效情况下能安全解锁的乘用车门锁控制装置，此实施例包括：MCU、系统基础芯片(SBC)、强制解锁模块(或称LIMPHOME LOGIC)和门锁桥式继电器。
MCU通过串行外围接口(Serial Peripheral Interface，SPI)总线和重置(RESET)控制线连接系统基础芯片SBC，系统基础芯片SBC用于生成解锁使能信号并通过使能信号线传输至强制解锁模块，强制解锁模块连接门锁桥式继电器的输入端A、B。
本发明提供的门锁控制装置用于具有点火开关的乘用车，其中，点火开关的一端连接KL30电源，另一端连接强制解锁模块，强制解锁模块还用于接收所述点火开关的打开(点火)或关闭(熄火)状态。
提供一种系统基础芯片的可行实施例，系统基础芯片与MCU的接口引脚分布，如图3所示；该实施例中，系统基础芯片采用恩智浦半导体公司(NXP)生产的IC芯片UJA107X系列；其中引脚9，10，11为SPI总线引脚，与MCU的SPI接口相连，引脚6为复位引脚(RESET)，与MCU的复位引脚(RESET)相连，引脚17为使能信号引脚，这样就实现了系统基础芯片在本申请中的基本连接。上述以外的引脚在系统基础芯片中有其他功能，因为与本申请提出的“强制解锁功能”没有直接关系，属于该芯片固有引脚(常规使用方法，参考表1所示)此处不再赘述。
表1
1 2 3 4 5 6 7 8
TXDL2 RXDL2 TXDL1 V1 RXDL1 RSTN INTN EN
9 10 11 12 13 14 15 16
SDI SDO SCK SCSN TXDC RXDC TEST1 WDOFF
17 18 19 20 21 22 23 24
LIMP WAKE1 WAKE2 V2 CANH CANL GND SPLIT
25 26 27 28 29 30 31 32
LIN1 DLIN LIN2 WBIAS VEXCC TEST2 VEXCTRL BAT
继续参考图2，SPI总线用于MCU对系统基础芯片设置参数及传输MCU状态信号，RESET控制线传输复位信号，使能信号线传输解锁使能信号，系统基础芯片具有MCU状态定时检测电路(Time Counter，TC)并能向MCU提供5V电源。
系统基础芯片能检测MCU是否失效并提供MCU复位信号，系统基础芯片根据MCU是否失效及点火开关ON档状态(即点火开关的打开或关闭状态)判断是否输出解锁信号至强制解锁模块。
MCU按设定时间间隔通过SPI总线向系统基础芯片发送MCU状态信号(利用看门狗巡检，Watchdog inspection)，若系统基础芯片超时未接收到MCU状态信号(相当于喂狗信号)，则系统基础芯片判断MCU故障/软件故障(即MCU失效)，通过RESET控制线第一次复位MCU并记录该次复位；若第一次MCU复位后系统基础芯片接收到MCU状态信号，则清除第一次MCU复 位记录；若第一次MCU复位后系统基础芯片仍无法接收到MCU状态信号，则启动强制解锁模式直至系统基础芯片接收到MCU状态信号；在强制解锁模式期间且点火开关处于ON档(即点火开关处于打开状态)，系统基础芯片通过控制强制解锁模块来控制门锁桥式继电器的强制解锁。
强制解锁功能由一个强制解锁模块来完成，它的输入来源于系统基础芯片提供的控制信号以及点火开关ON档输入，它的输出直接控制解锁继电器。当系统基础芯片检测到MCU失效，给出控制信号后，如果此时车辆处于ON档，则该强制解锁模块强制输出一个500ms高电平到解锁继电器，使得门控完成MCU失效下的强制解锁功能。
实施例二
如图4所示，本发明提供的在乘用车MCU失效或乘用车门控内电机驱动模块(继电器)发生机械粘滞情况下能安全解锁的门锁控制装置的另一实施例，在第一实施例的基础上还包括：一采集电路(Monitor)，MCU连接门锁桥式继电器的两输入端A、B，采集电路连接门锁桥式继电器的两输出端C、D，其中，输出端C为上锁输出端，输出端D为解锁输出端，采集电路采集继电器输出端电平并反馈至所述MCU；MCU将接收到的继电器输出端电平与MCU逻辑控制指令进行比较，MCU根据比较结果控制门锁桥式继电器是否开锁。
具体的，采集电路能检测门锁桥式继电器输出端电平(例如高电平)并将该输出端电平发送至MCU，MCU将接收到的门锁桥式继电器输出端电平与MCU逻辑控制指令(是否要求输出高电平)进行比较，MCU根据比较结果控制门锁桥式继电器是否开锁。
采集电路在采集得到输出端C的电平为高电平且MCU逻辑控制指令未要求输出高电平时，MCU强制同时开启门锁桥式继电器的两个输出端C、D，使两个输出端C、D等电位。
本领域技术人员容易理解，当上锁输出端C为高电平而解锁输出端D为 低电平时，电机正向运转，实现机械结构上锁；反之，当上锁输出端C为低电平而解锁输出端D为高电平时，电机反向运转，实现机械结构解锁。当两输出端C、D等电位时，电机不转。
由于电机运转很小的时间(一般小于100ms)，就可以形成实际上的机械结构上锁，所以对于继电器高电平反馈端口最好采用中断式输入，或者采样时间调为极短，然后立刻采取措施保持桥式电路两端等电位，此处采用的中断式输入为单片机原理，即一条条的执行各种操作所需的命令指令。在电机两端等电位后，门控还可以尝试恢复策略。首先关闭上锁继电器的输出，检测到反馈为低电平，表示上锁继电器不粘滞的时候，再断开解锁继电器输出，之后系统恢复正常，解锁功能可以再次使用。
较佳的，所述门锁桥式继电器高电平输出端采用中断式输入，或者所述采集电路采用采样时间间隔小于等于10ms的形式。
实施例三
如图5所示，在本实施例中，本发明提供的乘用车门锁控制装置包括：MCU、采集电路和门锁桥式继电器。与实施例二的区别在于：乘用车门锁控制装置不包括系统基础芯片及强制解锁模块。采集电路的工作原理与连接关系与实施例二完全相同，在此不再赘述。
如图6所示，为本发明采集电路的一具体实施例，采集电路具有两个采集端E、F和两个输出端G、H，第一电阻R1一端作为该采集电路的第一采集端E，第一电阻R1的另一端作为该采集电路的第一输出端G并通过第三电阻R3接地；第二电阻R2一端作为该采集电路的第二采集端F，第二电阻R2的另一端作为该采集电路的第二输出端H并通过第四电阻R4接地；第一采集端E通过第一二极管D1接地，第二采集端F通过第二二极管D2接地。
该采集电路工作时，其第一采集端E、第二采集端F连接门锁桥式继电器的两个输出端C、D，其第一输出端G、第二输出端H输出采集信号至MCU。
如图7所示，其为强制解锁模块的一种实施方式，该强制解锁模块包括：
一电源KL15，连接至整车电源(未图示)并与脉冲发生器相连接；
一RC电路，与脉冲发生器相连接，脉冲发生器接收系统基础芯片发出的解锁使能信号并输出驱动信号通过继电器线圈驱动器(Relay Coil Driver)发送至门锁继电器，该门锁继电器由电源Ubat提供电压，再通过门锁继电器来控制电机。
以上通过具体实施方式和实施例对本发明进行了详细的说明，但这些并非构成对本发明的限制。在不脱离本发明原理的情况下，本领域的技术人员还可做出许多变形和改进，这些也应视为本发明的保护范围。

Claims (11)

  1. 一种门锁控制装置，用于具有点火开关的乘用车，其特征在于，包括：
    一门锁继电器，具有两输入端、一上锁输出端和一解锁输出端；
    一主控制单元，用于生成表明所述主控制单元是否失效的一主控制单元状态信号以及用于输入至所述门锁继电器的两输入端且用于控制所述门锁继电器的所述上锁和解锁输出端的电平的逻辑控制指令，
    一强制解锁模块，连接所述门锁继电器的两输入端，以及用于接收所述点火开关的打开或关闭状态信号；以及
    一系统基础芯片，用于接收所述主控制单元状态信号，并且当所述主控制单元失效时，生成一解锁使能信号至所述强制解锁模块，
    其中，当所述强制解锁模块同时接收到所述解锁使能信号以及所述点火开关的打开状态信号时，强制所述门锁继电器解锁。
  2. 如权利要求1所述的门锁控制装置，其特征在于，还包括：一采集电路，连接所述门锁继电器的上锁输出端和解锁输出端，所述采集电路用于检测所述门锁继电器的上锁输出端和解锁输出端的电平并将所述上锁输出端的电平发送至所述主控制单元,所述主控制单元将接收到的所述上锁输出端的电平与所述主控制单元的逻辑控制指令进行比较，所述主控制单元根据比较结果控制所述门锁继电器是否解锁。
  3. 如权利要求2所述的门锁控制装置，其特征在于：
    当所述采集电路检测到的所述上锁输出端的电平为高电平且所述主控制单元的逻辑控制指令未要求上锁输出端输出高电平时，所述主控制单元将所述门锁继电器的上锁输出端和解锁输出端同时强制设为高电平。
  4. 如权利要求1所述的门锁控制装置，其特征在于：
    所述系统基础芯片还用于当所述主控制单元失效时生成一复位信号至所述主控制单元。
  5. 如权利要求2所述的门锁控制装置，其特征在于：所述上锁输出端和解锁输出端的电平采用中断式输入。
  6. 如权利要求2所述的门锁控制装置，其特征在于：所述采集电路的采样时间间隔小于等于10ms。
  7. 如权利要求2所述的门锁控制装置，其特征在于，所述采集电路包括：第一电阻、第二电阻、第三电阻、第四电阻、第一二极管及第二二极管，所述第一电阻的一端作为该采集电路的第一采集端，所述第一电阻的另一端作为该采集电路的第一输出端并通过所述第三电阻接地；所述第二电阻的一端作为该采集电路的第二采集端，所述第二电阻的另一端作为该该集电路的第二输出端并通过所述第四电阻接地；所述第一采集端通过所述第一二极管接地，所述第二采集端通过所述第二二极管接地，所述第一采集端连接所述门锁继电器的上锁输出端，所述第二采集端连接所述门锁继电器的解锁输出端，所述第一输出端和第二输出端连接所述主控制单元。
  8. 如权利要求1至7中任一项所述的门锁控制装置，其特征在于：所述主控制单元按设定时间间隔向系统基础芯片发送所述主控制单元状态信号，若所述系统基础芯片超时未接收到所述主控制单元状态信号，则所述系统基础芯片判断所述主控制单元发生故障，复位所述主控制单元并存储复位记录；
    若所述主控制单元复位后系统基础芯片接收到所述主控制单元状态信号则清除所述复位记录；
    若所述主控制单元复位后系统基础芯片仍无法接收到所述主控制单元状态信号，则系统基础芯片持续输出解锁使能信号至所述强制解锁模块直至所述系统基础芯片接收到所述主控制单元状态信号。
  9. 如权利要求1至7中任一项所述的门锁控制装置，其特征在于：所述强制解锁模块包括一脉冲发生器，用于接收所述系统基础芯片发出的所述解锁使能信号并输出驱动信号至所述门锁继电器。
  10. 如权利要求1所述的门锁控制装置，其特征在于：所述系统基础芯片还包括一状态定时检测电路，所述状态定时检测电路用于检测所述主控制单元是否失效。
  11. 如权利要求1所述的门锁控制装置，其特征在于：所述系统基础芯片向所述主控制单元提供一电源。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112282530B (zh) * 2020-10-26 2021-11-19 中车南京浦镇车辆有限公司 列车单门控制电路

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003165416A (ja) * 2001-11-30 2003-06-10 Alpha Corp ロック制御装置
CN200992869Y (zh) * 2006-12-26 2007-12-19 奇瑞汽车有限公司 一种汽车门锁控制装置
CN103266817A (zh) * 2013-04-26 2013-08-28 宁波星峰机械有限公司 智能车身控制器的门锁控制系统
CN203321115U (zh) * 2013-05-24 2013-12-04 安徽江淮汽车股份有限公司 汽车门锁控制系统
US20140159480A1 (en) * 2012-12-12 2014-06-12 Beat-Sonic Co., Ltd. Vehicle door lock control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003165416A (ja) * 2001-11-30 2003-06-10 Alpha Corp ロック制御装置
CN200992869Y (zh) * 2006-12-26 2007-12-19 奇瑞汽车有限公司 一种汽车门锁控制装置
US20140159480A1 (en) * 2012-12-12 2014-06-12 Beat-Sonic Co., Ltd. Vehicle door lock control device
CN103266817A (zh) * 2013-04-26 2013-08-28 宁波星峰机械有限公司 智能车身控制器的门锁控制系统
CN203321115U (zh) * 2013-05-24 2013-12-04 安徽江淮汽车股份有限公司 汽车门锁控制系统

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109586779A (zh) * 2018-12-14 2019-04-05 武汉泰可电气股份有限公司 基于ZigBee网络的智能在线五防网络中继
CN110262302A (zh) * 2019-04-11 2019-09-20 汉腾汽车有限公司 一种电机控制器mcu的检测方法
CN112485725A (zh) * 2020-10-21 2021-03-12 惠州市德赛西威汽车电子股份有限公司 一种车载娱乐和仪表系统的电源线状态的检测装置及方法
CN112485725B (zh) * 2020-10-21 2022-10-28 惠州市德赛西威汽车电子股份有限公司 一种车载娱乐和仪表系统的电源线状态的检测装置及方法
WO2023093269A1 (zh) * 2021-11-29 2023-06-01 广州汽车集团股份有限公司 一种车辆mcu失效控制电路及方法
CN114655142A (zh) * 2022-04-20 2022-06-24 天津经纬恒润科技有限公司 一种双mcu控制系统及汽车
CN114655142B (zh) * 2022-04-20 2023-12-22 天津经纬恒润科技有限公司 一种双mcu控制系统及汽车
CN115657516A (zh) * 2022-09-20 2023-01-31 东软睿驰汽车技术（沈阳）有限公司 电动汽车的继电器锁存控制电路和方法

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