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Automatic transmission vehicle starting control method and device

A control method and a technology of a control device, which are applied in transmission control, components with teeth, belts/chains/gears, etc., can solve the problems of pedestrian danger and safety hazards around people on the vehicle, and achieve the goal of improving driving safety Effect

Active Publication Date: 2016-06-29
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the vehicle is a model with large displacement and high engine idling torque, if the driver unintentionally releases the brake, the vehicle will suddenly start at a relatively fast speed, which is likely to pose a danger to the occupants and pedestrians around, so this There is a potential safety hazard in the control method for starting a vehicle with automatic transmission

Method used

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  • Automatic transmission vehicle starting control method and device
  • Automatic transmission vehicle starting control method and device
  • Automatic transmission vehicle starting control method and device

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] figure 2 Shown is a preferred embodiment of the automatic transmission vehicle starting control device provided by the present invention, the control device is used to control the automatic transmission vehicle starting, specifically including:

[0024] The automatic transmission control unit 201 receives and controls the state of the clutch 203 according to the gear position signal and the brake signal;

[0025] The accelerator pedal displacement sensor 202 detects the accelerator pedal position signal and transmits the accelerator pedal position signal to the automatic transmission control unit 201;

[0026] The automatic transmission control unit 201 is configured to control the oil filling of the clutch 203 when the gear position signal is D gear or R gear, and then when the brake signal is that the brake has been released and th...

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Abstract

The invention discloses a startup control method for an automatic transmission vehicle and a corresponding startup control device. The startup control method comprises the following steps: a gear detecting step: detecting gears of the vehicle, and when the gear is D gear or R gear, controlling a clutch to charge oil; a brake signal detecting step: detecting a brake signal, and when the brake signal indicates unloosened brake, continuing a subsequent step; an accelerator signal detecting step: detecting an accelerator pedal position signal, and when the accelerator pedal position signal is larger than a preset value, continuing a subsequent step; a starting step: controlling the connection of the clutch to start up the vehicle. By the startup control method, traffic accidents caused by that a driver inadvertently unloosens the brake when the automatic transmission vehicle starts up can be avoided, so that the driving safety is improved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a method and device for controlling the start of an automatic transmission vehicle. Background technique [0002] When starting an automatic transmission vehicle, you must first put the transmission lever in the D or R position, release the manual brake, and the vehicle will start immediately after the brake is released, even if the driver does not step on the accelerator at this time, the vehicle will still drive . figure 1 Shown is the change diagram of the transmission gear lever, accelerator, brake signal, vehicle speed and clutch state when the vehicle starts. figure 1 It can be seen from the figure that after the transmission lever is adjusted to the D or R position, the clutch starts to pre-fill oil, and the clutch starts to transmit the engine torque after the brake is released at time t1. Rise to 4kph; the accelerator can always be closed during the vehicle start phase. If ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02F16H61/18
Inventor 何麒瑜金吉刚杨安志赵福全
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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