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Control device and method for AMT vehicle sloping route starting

A technology of a control device and a control method, which is applied in the control of transmission devices, components with teeth, belts/chains/gears, etc., can solve difficult parameter adjustment, difficulty in controlling parameters, and unclear relationship between parameter characteristics and control targets, etc. problem, to achieve the effect of improving smoothness and precise control

Active Publication Date: 2008-06-25
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently, there is fuzzy control, but in the process of parameter fuzzification, human factors have a greater influence, and the relationship between parameter characteristics and control objectives in control rules is not clear , it is not easy to adjust the parameters, and it is difficult to obtain better control parameters

Method used

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  • Control device and method for AMT vehicle sloping route starting
  • Control device and method for AMT vehicle sloping route starting
  • Control device and method for AMT vehicle sloping route starting

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Embodiment Construction

[0018] The specific embodiment of the present invention is as figure 1 As shown, it provides a hardware connection for the AMT vehicle to start on a slope, including a signal acquisition unit 10 , an ECU (Electronic Control Unit, electronic control unit) 20 and an actuator 30 . The signal acquisition unit 10 includes a transmission shaft speed sensor 11, an engine speed sensor 12, an accelerator pedal sensor 13, a primary brake sensor 14, a secondary brake sensor 15, a throttle position sensor 16, a clutch position sensor 17, and a gear position sensor 18 , two vehicle speed sensors 19. The electronic control unit 20 includes a signal receiving module 21 , a signal analysis and judgment module 22 , and a control signal output module 23 . The actuator unit 30 includes a clutch motor 31 and an accelerator motor 32 . The signal receiving module 21 receives the signal from the signal acquisition unit 10, and the signal analysis and judgment module 22 analyzes and judges the rece...

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Abstract

The invention discloses a control device and method for starting of an AMT vehicle on a ramp, which comprises a signal collecting unit, an electronic control unit and an actuating mechanism. The electronic control unit comprises a signal receiving module, a signal analysis and judgment module and a control signal output module, and the actuating mechanism comprises a clutch motor and a throttle motor. The signal collecting unit at least comprises a brake sensor of first level and a brake sensor of second level, the signal analysis and judgment module determines the engaging extent of a clutch and the opening extent of an air control shutter according to the signals collected by the brake sensors of first and second level and received by the signal receiving module, and the control signal output module respectively controls the actions of the clutch motor and the throttle motor according to the engaging extent of the clutch and the opening extent of the air control shutter. The control method for starting of the AMT vehicle on the ramp provided by the invention enables the engaging extent of the clutch and the opening extent of the air control shutter not to be zero when a brake pedal is released, thereby overcoming the starting spark extinction and back sliding of the vehicle caused by factors like friction force, engine torque, etc. during staring of the vehicle on the ramp.

Description

technical field [0001] The invention relates to a control device and method for an AMT (Automatic Mechanical Transmission, electronically controlled mechanical automatic transmission) vehicle to start on a slope. Background technique [0002] In the control system of AMT vehicles, the core and difficulty of the electromechanical automatic transmission is the control of the clutch during the starting process. The control goal is not only to improve the smoothness of the clutch engagement during the starting process, but also to reduce the slipping of the clutch and prolong the use of the clutch. Life, but also to ensure the stable operation of the engine, reduce fluctuations in engine speed. If the clutch is engaged too fast, it will not only destroy the smoothness of starting and cause a shock at starting, but also cause large fluctuations in engine speed, and even cause engine vibration. Conversely, if the engagement speed of the clutch is excessively reduced in order to i...

Claims

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Application Information

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IPC IPC(8): F16H61/00
Inventor 任毅郭洪江陈玉芬
Owner BYD CO LTD
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