CN106828198A - The abrupt slope slow-descending system and its control method of a kind of electric automobile - Google Patents
The abrupt slope slow-descending system and its control method of a kind of electric automobile Download PDFInfo
- Publication number
- CN106828198A CN106828198A CN201611225367.9A CN201611225367A CN106828198A CN 106828198 A CN106828198 A CN 106828198A CN 201611225367 A CN201611225367 A CN 201611225367A CN 106828198 A CN106828198 A CN 106828198A
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- China
- Prior art keywords
- abrupt slope
- slope
- entire car
- slow
- car controller
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/28—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed without contact making and breaking, e.g. using a transductor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/60—Navigation input
- B60L2240/64—Road conditions
- B60L2240/642—Slope of road
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/44—Control modes by parameter estimation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of the abrupt slope slow-descending system and its control method of electric automobile, and abrupt slope slow-descending system includes the slow drop unit in abrupt slope, entire car controller and main drive motor；The slow drop unit in abrupt slope includes the slow drop switch in abrupt slope and Slope Transducer, the slow drop switch in abrupt slope and Slope Transducer are connected with entire car controller respectively, the slow drop switch in abrupt slope is used to for entire car controller to switch to the slow drop pattern in abrupt slope, and Slope Transducer is used to detect the value of slope of current road conditions to determine whether the being descending road conditions in abrupt slope；Main drive motor is connected with entire car controller, and entire car controller can control size and the direction of main drive motor output torque；Entire car controller is used to detect road conditions for abrupt slope is descending and abrupt slope is delayed drop switch and switches to the target velocity for controlling the main size for driving motor output torque and direction to make speed maintain setting when drop pattern is delayed on abrupt slope in Slope Transducer.The present invention can realize the slow drop function in abrupt slope in the case where electric automobile is configured without electric controlled brake system, and simple to operate, cost is relatively low.
Description
【Technical field】
The present invention relates to the full-vehicle control field of electric automobile, more particularly to a kind of electric automobile abrupt slope slow-descending system and
Its control method.
【Background technology】
Current electric automobile configures electric controlled brake system using slow control method, the i.e. vehicle of dropping in abrupt slope of conventional fuel oil car
(such as ABS system), is braked and electric controlled brake system collective effect by engine, vehicle is entered low-speed running state.But, electricity
Electrical automobile is relatively costly using the slow drop control method in above-mentioned abrupt slope, and is susceptible to failure, and maintenance cost is higher.
In consideration of it, real be necessary to provide the abrupt slope slow-descending system and its control method of a kind of new electric automobile, to overcome
The weak point that prior art is present.
【The content of the invention】
It is an object of the invention to provide the abrupt slope slow-descending system and its control method of a kind of electric automobile, with operation letter
Single, cost is relatively low, and the relatively low advantage of fault rate.
To achieve these goals, the present invention provides a kind of abrupt slope slow-descending system of electric automobile, including the slow drop list in abrupt slope
Unit, entire car controller and main drive motor；The slow drop unit in the abrupt slope includes the slow drop switch in abrupt slope and Slope Transducer, described steep
The slow drop switch in slope and the Slope Transducer are connected with the entire car controller respectively, and the slow drop switch in the abrupt slope is for will be whole
Vehicle controller switches to the slow drop pattern in abrupt slope, the Slope Transducer be used to detect the value of slope of current road conditions with determine whether for
The descending road conditions in abrupt slope；The main drive motor is connected with the entire car controller, and the entire car controller can control the main drive
The size of motor output torque and direction；The entire car controller is used in the case where the Slope Transducer detects road conditions for abrupt slope
When the slow drop switch in the capable and abrupt slope switches to the slow drop pattern in abrupt slope, the main size for driving motor output torque and direction are controlled
Speed is set to maintain the target velocity of setting.
In a preferred embodiment, the abrupt slope slow-descending system of the electric automobile also includes signals of vehicles unit；Institute
Signals of vehicles unit is stated including gear position sensor, brake pedal and accelerator pedal, the gear position sensor, the brake pedal and
The accelerator pedal is connected with the entire car controller respectively, by the gear signal of vehicle, the switching signal of brake pedal and add
The opening amount signal of speed pedal is respectively sent to the entire car controller.
In a preferred embodiment, the entire car controller is additionally operable to detect road conditions in the Slope Transducer and is
When the slow drop switch in the descending and abrupt slope switches to the slow drop pattern in abrupt slope, stepped on by controlling the brake pedal or the acceleration
Plate adjusts the target velocity.
A kind of slow drop control method in abrupt slope of electric automobile, comprises the following steps：
Step 1, detects the value of slope of current road conditions to determine whether the being descending road conditions in abrupt slope by Slope Transducer；In this way
Then enter step 2；As not being to proceed step 1；
Step 2, the slow drop pattern in abrupt slope is switched to by the slow drop switch in abrupt slope by entire car controller；
Step 3, makes speed maintain setting by the main size for driving motor output torque of vehicle control unit controls and direction
Target velocity.
In a preferred embodiment, also include：
Be sent to for speed-regulating signal of brake pedal or accelerator pedal with this by step 4, operation brake pedal or accelerator pedal
Entire car controller；
Step 5, entire car controller is adjusted according to the speed-regulating signal for receiving to the target velocity.
In a preferred embodiment, the target velocity is 8-9km/h.
In a preferred embodiment, it is further comprising the steps of before step 1：
By the signal of gear signal, the switching signal of brake pedal, the switching signal of accelerator pedal and Slope Transducer
It is sent to entire car controller.
The present invention can realize the slow drop function in abrupt slope, tool in the case where electric automobile is configured without electric controlled brake system
Have simple to operate, cost is relatively low, fault rate and the relatively low advantage of maintenance cost.
【Brief description of the drawings】
Fig. 1 is the structural representation of the abrupt slope slow-descending system of electric automobile of the present invention.
Fig. 2 is the control principle block diagram of the abrupt slope slow-descending system of electric automobile of the present invention.
【Specific embodiment】
In order that the purpose of the present invention, technical scheme and Advantageous Effects become apparent from understanding, below in conjunction with accompanying drawing and
Specific embodiment, the present invention will be described in further detail.It should be appreciated that the specific implementation described in this specification
Mode is not intended to limit the present invention just for the sake of explaining the present invention.
As shown in figure 1, a kind of abrupt slope slow-descending system 100 of electric automobile that the present invention is provided, including the slow drop unit in abrupt slope
10th, entire car controller 20 and main drive motor 40.
The slow drop unit 10 in the abrupt slope is connected with the entire car controller 20.Specifically, the slow drop unit 10 in the abrupt slope
Including abrupt slope slow drop switch 11 and Slope Transducer 12, the slow drop switch 11 in the abrupt slope and the Slope Transducer 12 respectively with institute
State entire car controller 20 to be connected, the slow drop switch 11 in the abrupt slope is used to for entire car controller 12 to switch to the slow drop pattern in abrupt slope,
The Slope Transducer 12 is used to detect the value of slope of current road conditions to determine whether the being descending road conditions in abrupt slope.
The abrupt slope slow-descending system 100 of the electric automobile also includes signals of vehicles unit 30.The signals of vehicles unit 30
Including gear position sensor 31, brake pedal 32 and accelerator pedal 33, the gear position sensor 31, the brake pedal 32 and described
Accelerator pedal 33 is connected with the entire car controller 20 respectively, by the gear signal of vehicle, the switching signal of brake pedal 32 and
The switching signal of accelerator pedal 33 is respectively sent to the entire car controller 20.
The main drive motor 40 is connected with the entire car controller 20, and the entire car controller 20 can control the main drive
The size of the output torque of motor 40 and direction, the main motor 40 that drives are used to export power for the wheel of electric automobile.It is described whole
Vehicle controller 20 is used to detect road conditions for abrupt slope is descending and the slow drop switch 11 in the abrupt slope switches in the Slope Transducer 12
The target for controlling the main size for driving the output torque of motor 40 and direction to make speed maintain setting when delaying drop pattern to abrupt slope
Speed.In the present embodiment, it is descending that the entire car controller 20 is additionally operable to detect road conditions in the Slope Transducer 12
And the slow drop switch 11 in the abrupt slope is when switching to the slow drop pattern in abrupt slope, stepped on by controlling the brake pedal 32 or the acceleration
Plate 33 adjusts the target velocity.
As shown in Fig. 2 the control principle of the abrupt slope slow-descending system 100 of above-mentioned electric automobile is as follows：
First, the gear signal, the switching signal of the brake pedal 32, the switching signal of the accelerator pedal 33 with
And the signal of the Slope Transducer 12 is all transferred into the entire car controller 20, if the entire car controller 20 judges car
Enter the descending road conditions in abrupt slope, driver opens the slow drop switch 11 in the abrupt slope, and the entire car controller 20 receives described steep
After the signal of drop switch 11 is delayed on slope, the main drive motor 40 is set to be in generating state, vehicle delays the running status of drop into abrupt slope.
Then, the entire car controller 20 controls the main size for driving the output torque of motor 40 and direction, ties up speed
The target velocity (such as 8-9km/h) in setting is held, now driver need to only control the direction of vehicle.In present embodiment
In, the main moment of torsion for driving the output of motor 40 is described when speed is not up to the target velocity of setting less than the braking torque for needing
It is main to drive the further output moment of torsion equal with the braking torque for needing of motor 40, speed is reached the target velocity of setting.
Under the operational mode that drop is delayed on whole abrupt slope, if driver needs to be adjusted speed, can be by operation
The accelerator pedal 33 or the brake pedal 32 adjust to required speed target velocity, after the speed needed for reaching
Stop the operation to the accelerator pedal 33 or the brake pedal 32；The entire car controller 20 controls the main drive motor 40
The size of output torque and direction, make vehicle reach required speed and maintain the speed.
Finally, the slow drop switch 11 in the abrupt slope is closed, the entire car controller 20 exits the slow drop pattern in abrupt slope, into normal
Driving control pattern.
Referring once again to Fig. 1, the present invention also provides a kind of abrupt slope of electric automobile slow drop control method, including following step
Suddenly：
Step 1, detects the value of slope of current road conditions to determine whether being walking along the street under abrupt slope by the Slope Transducer 12
Condition；Then enter step 2 in this way；As not being to proceed step 1；
Step 2, the slow drop pattern in abrupt slope is switched to by the slow drop switch 11 in the abrupt slope by the entire car controller 20；
Step 3, by the entire car controller 20 control it is main drive the output torque of motor 40 size and direction tie up speed
Hold the target velocity in setting.
If driver needs to be adjusted speed, further comprising the steps of：
Step 4, operate the brake pedal 32 or the accelerator pedal 33 with this by the brake pedal 32 or it is described plus
The speed-regulating signal of speed pedal 33 is sent to the entire car controller 20；
Step 5, the entire car controller 20 is adjusted according to the speed-regulating signal for receiving to the target velocity.
In the present embodiment, it is further comprising the steps of before step 1：
By the gear signal, the switching signal of the brake pedal 32, the switching signal of the accelerator pedal 33 and
The signal of the Slope Transducer 12 is sent to the entire car controller 20.
The present invention can realize the slow drop function in abrupt slope, tool in the case where electric automobile is configured without electric controlled brake system
Have simple to operate, cost is relatively low, fault rate and the relatively low advantage of maintenance cost.
The present invention is not restricted to described in specification and implementation method, therefore for the personnel of familiar field
Additional advantage and modification are easily achieved, therefore in the essence of the universal limited without departing substantially from claim and equivalency range
In the case of god and scope, the present invention is not limited to specific details, representational equipment and shown here as the diagram with description
Example.
Claims (7)
1. the abrupt slope slow-descending system of a kind of electric automobile, it is characterised in that：Including the slow drop unit in abrupt slope, entire car controller and master
Drive motor；The slow drop unit in the abrupt slope includes the slow drop switch in abrupt slope and Slope Transducer, the slow drop switch in the abrupt slope and the slope
Degree sensor is connected with the entire car controller respectively, and the slow drop switch in the abrupt slope by entire car controller for switching to abrupt slope
Slow drop pattern, the Slope Transducer is used to detect the value of slope of current road conditions to determine whether the being descending road conditions in abrupt slope；It is described
Main drive motor is connected with the entire car controller, and the entire car controller can control the main size for driving motor output torque
And direction；The entire car controller is used to detect road conditions for abrupt slope is descending and the slow drop in the abrupt slope is opened in the Slope Transducer
When concern shifts to the slow drop pattern in abrupt slope, the main size for driving motor output torque and direction is controlled speed is maintained setting
Target velocity.
2. the abrupt slope slow-descending system of electric automobile as claimed in claim 1, it is characterised in that：Delay on the abrupt slope of the electric automobile
Drop system also includes signals of vehicles unit；The signals of vehicles unit includes gear position sensor, brake pedal and accelerator pedal, institute
State gear position sensor, the brake pedal and the accelerator pedal to be connected with the entire car controller respectively, by the gear of vehicle
The opening amount signal of signal, the switching signal of brake pedal and accelerator pedal is respectively sent to the entire car controller.
3. the abrupt slope slow-descending system of electric automobile as claimed in claim 2, it is characterised in that：The entire car controller is additionally operable to
When the Slope Transducer detects road conditions and delays drop pattern for the slow drop switch in descending and described abrupt slope switches to abrupt slope, by control
The brake pedal or the accelerator pedal is made to adjust the target velocity.
4. a kind of slow drop control method in abrupt slope of electric automobile, comprises the following steps：
Step 1, detects the value of slope of current road conditions to determine whether the being descending road conditions in abrupt slope by Slope Transducer；Then enter in this way
Enter step 2；As not being to proceed step 1；
Step 2, the slow drop pattern in abrupt slope is switched to by the slow drop switch in abrupt slope by entire car controller；
Step 3, makes speed maintain the mesh of setting by the main size for driving motor output torque of vehicle control unit controls and direction
Mark speed.
5. the abrupt slope of electric automobile as claimed in claim 4 is slow drops control method, it is characterised in that：Also include：
The speed-regulating signal of brake pedal or accelerator pedal is sent to vehicle by step 4, operation brake pedal or accelerator pedal with this
Controller；
Step 5, entire car controller is adjusted according to the speed-regulating signal for receiving to the target velocity.
6. the abrupt slope of electric automobile as claimed in claim 4 is slow drops control method, it is characterised in that：The target velocity is 8-
9km/h。
7. the abrupt slope of electric automobile as claimed in claim 4 is slow drops control method, it is characterised in that：Also wrap before step 1
Include following steps：
The signal of gear signal, the switching signal of brake pedal, the switching signal of accelerator pedal and Slope Transducer is transmitted
To entire car controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225367.9A CN106828198A (en) | 2016-12-27 | 2016-12-27 | The abrupt slope slow-descending system and its control method of a kind of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225367.9A CN106828198A (en) | 2016-12-27 | 2016-12-27 | The abrupt slope slow-descending system and its control method of a kind of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106828198A true CN106828198A (en) | 2017-06-13 |
Family
ID=59135462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611225367.9A Pending CN106828198A (en) | 2016-12-27 | 2016-12-27 | The abrupt slope slow-descending system and its control method of a kind of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106828198A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110027379A (en) * | 2019-04-22 | 2019-07-19 | 爱驰汽车有限公司 | Active suspension self-adapting regulation method, system, equipment and storage medium |
| CN110281927A (en) * | 2019-06-20 | 2019-09-27 | 浙江吉利控股集团有限公司 | A kind of ramp driving control method, device and equipment |
| CN110654358A (en) * | 2019-10-30 | 2020-01-07 | 徐州徐工汽车制造有限公司 | Heavy truck steep slope slow descending control system and control method |
| CN110979280A (en) * | 2019-12-28 | 2020-04-10 | 华南理工大学 | Automobile steep slope descent control system based on integrated electro-hydraulic braking system and control method |
| CN111993903A (en) * | 2020-08-24 | 2020-11-27 | 奇瑞商用车（安徽）有限公司 | Method and system for controlling gradual descent of automobile steep slope |
| CN113212399A (en) * | 2021-05-31 | 2021-08-06 | 东风柳州汽车有限公司 | Steep slope slow descending control system based on electronic calipers |
| CN113829898A (en) * | 2021-11-15 | 2021-12-24 | 合众新能源汽车有限公司 | Vehicle control method and vehicle |
| CN114103948A (en) * | 2020-08-27 | 2022-03-01 | 舍弗勒技术股份两合公司 | Steep slope slow descending control method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110027379A (en) * | 2019-04-22 | 2019-07-19 | 爱驰汽车有限公司 | Active suspension self-adapting regulation method, system, equipment and storage medium |
| CN110281927A (en) * | 2019-06-20 | 2019-09-27 | 浙江吉利控股集团有限公司 | A kind of ramp driving control method, device and equipment |
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| CN110979280A (en) * | 2019-12-28 | 2020-04-10 | 华南理工大学 | Automobile steep slope descent control system based on integrated electro-hydraulic braking system and control method |
| CN111993903A (en) * | 2020-08-24 | 2020-11-27 | 奇瑞商用车（安徽）有限公司 | Method and system for controlling gradual descent of automobile steep slope |
| CN114103948A (en) * | 2020-08-27 | 2022-03-01 | 舍弗勒技术股份两合公司 | Steep slope slow descending control method and system |
| CN113212399A (en) * | 2021-05-31 | 2021-08-06 | 东风柳州汽车有限公司 | Steep slope slow descending control system based on electronic calipers |
| CN113829898A (en) * | 2021-11-15 | 2021-12-24 | 合众新能源汽车有限公司 | Vehicle control method and vehicle |
| CN113829898B (en) * | 2021-11-15 | 2023-09-12 | 合众新能源汽车股份有限公司 | Vehicle control method and vehicle |
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Effective date of registration: 20191101 Address after: 518000 Shenyu Science and Technology Park, No. 68 Lanjingbei Road, Laokeng Community, Longtian Street, Pingshan District, Shenzhen City, Guangdong Province, 101 Applicant after: Shenzhen Anding New Energy Technology Development Co., Ltd. Address before: 518000 Guangdong Province, Shenzhen City Pingshan Pingshan community Zhu Keng Industrial Zone 9 1-3 Applicant before: Shenzhen Optimum Battery Co., Ltd. |
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