JPS6298058A - Control device for automatic speed change gear - Google Patents

Abstract

PURPOSE:To obtain a speed change pattern which satisfies the feeling of the driver, by setting shift amount for a speed change chart in a speed change pattern setting section and by preparing a control speed change chart in which a reference speed change chart is shifted corresponding to the shift amount. CONSTITUTION:A signal is delivered from a speed change pattern setting device 1 to a speed change chart setting section 4 where the signal is processed in accordance with data concerning the amount of movement to prepare a control speed change chart which is stored in a memory section 6. Data from the memory section 6 are transmitted to a speed change determining and processing section 7 together with various kinds of vehicle conditions to select a new speed change pattern 1. Accordingly, it is possible to select a speed change pattern which satisfies the feeling of the drivers, completely.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control device for an automatic transmission used in an automobile, and in particular to an automatic transmission that is capable of selecting a speed change pattern that suits the driver's feeling. Related to machine control devices.

[Conventional technology]

Automatic transmissions used in vehicles determine the gear position according to the throttle opening of the accelerator and the transmission output shaft rotation speed (vehicle speed), and automatically change gears. The shift point at which the shift is made is determined by an automatic shift diagram as shown in FIG. In other words, depending on the relationship between the throttle opening of the accelerator and the transmission output shaft rotation speed (vehicle speed),
It is controlled to automatically upshift or downshift to each gear of 3rd gear, 3rd gear, and OD. However, the control system using only one type of automatic shift diagram is no longer able to meet the demands of modern drivers, so in recent years, multiple shift patterns have been prepared, and a certain shift can be automatically performed using a selection switch or depending on the driving condition. A method of switching to a pattern is emerging.

[Problem that the invention seeks to solve]

However, with the conventional method described above, there is a limit to the number of types of shift patterns, making it difficult to completely adapt to the driver's feeling.In addition, increasing the number of types of shift patterns complicates the system and increases costs. The problem arises that it becomes a high factor.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a control device for an automatic transmission that can easily change the shift pattern to match the feeling of the driver in response to the driver's requests. It is something to do.

[Means for solving problems]

To this end, the automatic transmission control device of the present invention includes a first storage section that stores a reference shift diagram, a second storage section that stores a control shift diagram, and a shift diagram that sets the shift amount of the transmission diagram. It includes a pattern setting section, a shift diagram setting section, and a shift control section that performs shift control corresponding to the accelerator opening degree and vehicle speed based on the control shift diagram, and the shift diagram setting section sets the standard shift diagram. The present invention is characterized in that a shift diagram for control is created by shifting according to the shift amount read from the first storage section and set, and stored in the second storage section.

[Action and effect of the invention]

In the automatic transmission control device of the present invention, by setting the shift amount of the shift diagram in the shift pattern setting section, a control shift diagram is created in which the reference shift diagram is shifted in accordance with the shift amount, This solves the drawback of the conventional technology, which had limitations in the types of speed change patterns. Furthermore, by setting the shift amount arbitrarily without complicating the control device, it is possible to select a shift pattern that perfectly suits the driver's feeling.

〔Example〕

Examples will be described below with reference to the drawings.

FIG. 1 is a block diagram of a control system for explaining one embodiment of the present invention, FIG. 2 is a diagram showing a gear shift pattern setting device, and FIG. 3 is a diagram for explaining a gear shift pattern setting method according to the present invention. In Figure 0, 1 is a shift pattern setting device, 2 is an operation knob, 3 is an A-D converter, 4 is a shift diagram setting unit, 5 is a reference shift diagram storage unit, and 6 is a control shift A diagram storage unit, 7 a gear change judgment processing unit, 8 a throttle sensor, 9
is a human power signal processing section, 10 is a vehicle speed sensor, 11 is an input signal processing section, 12 is a shift position switch, 13 is an output section, 14 to 16 are solenoids, 17 is a brake switch, 18 is a lock amplifier cut section, 19 is a water temperature The switch 20 indicates the ○D cut portion.

In FIG. 1, a shift pattern setting device 1 is used to set a desired shift pattern, and a signal from this shift pattern setting device 1 is converted from an analog quantity to a digital quantity by an A-D converter 3, and is used for shifting. The data is sent to the diagram setting section 4.

On the other hand, a plurality of types of reference shift diagrams corresponding to each range (for example, D range and 2 range) are stored in the reference shift diagram storage section (ROM) 5, and these data are stored in the shift diagram setting section. Loaded into 4. Then, in the shift diagram setting section 4, a control shift diagram is created by arithmetic processing based on the movement amount data, and a plurality of new shift pattern tables are stored in the control shift diagram storage section (RAM) 6. is written. In this way, when the driver operates the shift pattern setting device 1 and changes its output, data for an arbitrary new shift pattern is created, thereby rewriting the data in the RAM. Here, the type of shift pattern depends on the resolution of the A-D converter 3 in the electronic control device, but in practice it can be changed almost continuously.

The variable speed setting device 1 consists of a sliding type variable resistor as shown in Fig. 2 (a) or a rotary type variable resistor as shown in Fig. 2 (b). By continuously changing the value, the shift pattern from the most fuel-efficient shift pattern (economy) to the best power performance shift pattern (power) is continuously selected.

FIG. 3 shows an example of the method of setting a shift pattern according to the present invention, and shows how to set a desired shift pattern according to the resistance value of the shift pattern setting device 1 explained in FIG. This is what is shown. Of these, (a) shows a method in which the standard shift diagram moves parallel to the high speed side, and (b) shows the amount of movement of the standard shift diagram as the throttle opening changes from low to high opening. (C) shows a method in which the amount of movement of the reference speed change diagram increases as the throttle opening changes from a high opening to a low opening. In addition, the above setting methods (a) and (b)
, and (c) are generally selected in advance, but all of these patterns may be prepared and switched using a selection switch. Further, the conventional pattern selection switch may be abolished, and the shift diagram setting section 4 may select one of the patterns shown in FIGS. 3(a), (b), and (c) in advance. In addition to the above-mentioned method, various methods of moving the reference speed change diagram may be considered, including non-linearly changing the method. That is, the present invention can be modified in various ways and is not limited to the above embodiments.

The data in the control shift diagram storage section 6 created and stored as described above is sent to the shift determination processing section 7. The shift determination processing section 7 also contains throttle opening data obtained by processing the signal from the throttle sensor 8 by the input signal processing section 9, and vehicle speed data obtained by processing the signal from the vehicle speed sensor 10 by the input signal processing section 11. Further, data indicating the position of each range from the shift position switch 12 is input.

Then, the shift determination processing section 7 selects one of the plurality of new shift pattern tables in the control shift diagram storage section 6 based on the data indicating the position of the range, and also selects the data on the throttle opening degree. The gear position is determined based on the vehicle speed data.

To explain this more specifically with reference to FIG. 3, for example, based on the standard shift diagram A of the D range,
When the driver operates the shift pattern setting device 11 to the power mode during 3rd gear operation with a throttle opening of 40%), the standard shift diagram A moves to the right according to the amount of change, and a new shift pattern B is created. It will be prepared. Thereafter, based on the new shift pattern B, the gear position is determined based on the throttle opening data and the vehicle speed data.

When the gear position is determined in the gear shift judgment processing section 7, the signal is sent to the output section 13, and the output operates the solenoid (NO1) 4 and the solenoid (NO2) 15 to change the clutch according to the pattern to be shifted. At the same time, the solenoid <N03) 16 is operated to control the lock-up clutch.

When the brake switch 17 is operating, a signal is sent to the lock amplifier cut section 18, and the output section 13 controls the solenoid (NO3) 16 to disengage the clutch. If the water temperature is below a certain value, the water temperature switch 19 is turned on, and information is sent to the output section 13 via the OD cut section 20 and the lock up clutch section 18, and OD operation and lock up clutch engagement are prohibited. As is clear, according to the present invention, the conventional drawback of being limited in the types of shift patterns can be overcome, and a shift pattern that perfectly suits the driver's feeling can be selected without complicating the control device. can do.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram of a control system for explaining an embodiment of the present invention, FIG. 2 is a diagram showing an example of a shift pattern setting device, and FIG. 3 is a diagram for explaining a method of setting a shift pattern according to the present invention. FIG. 4 is a conventional automatic transmission diagram. 1... Speed change pattern setting device, 2... Operation knob,
3... A-D conversion section, 4... Speed change diagram setting section, 5.
...Reference shift diagram storage section, 6... Control shift diagram storage section, 7... Shift judgment processing section, 8... Throttle sensor, 9... Input signal processing section, 10... vehicle speed sensor,
DESCRIPTION OF SYMBOLS 11... Input signal processing part, 12... Shift position switch, 13... Output part, 14... Solenoid (NOI), 15... Solenoid (NO2), 1
6...Solenoid (NO3) 17...Brake switch, 18...Ronoqua knob section, 19...Water temperature switch, 2o...OD cant section. Applicant Aisin Warner Co., Ltd. Agent Patent Attorney Ryukichi Abe Figure 2 Figure 3 (a) (b)
(c) Fu-ka sequence (-l-

Claims (2)

[Claims] (1) a first storage section that stores a reference shift diagram; a second storage section that stores a control shift diagram; a shift pattern setting section that sets the shift amount of the shift diagram; a shift diagram setting section; and a shift control section that performs shift control in accordance with the accelerator opening degree and vehicle speed based on a control shift diagram, and the shift diagram setting section:
The reference speed change diagram is read from the first storage section and shifted according to the set shift amount to create a control speed change diagram, and the second
A control device for an automatic transmission, characterized in that the information is stored in a storage unit. (2) The shift diagram setting section creates a control shift diagram by changing the shift amount set according to a predetermined pattern in accordance with the accelerator opening degree.
A control device for an automatic transmission as described in .