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Vehicle control apparatus

A vehicle control and equipment technology, applied in electrical control, mechanical equipment, engine control, etc., can solve the problem of not being able to obtain crawling force, and achieve the effect of suppressing impact and improving controllability

Inactive Publication Date: 2008-05-28
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the return from neutral control and the start of return from brake hold control (start of brake pressure release) are performed simultaneously in this way, the brake pressure is released earlier than the engagement of the forward clutch of the automatic transmission, so when the vehicle starts When advancing on the road (when going uphill), there is a danger that sufficient crawling force will not be obtained and the vehicle will back up

Method used

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  • Vehicle control apparatus
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Embodiment Construction

[0032] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0033] A drive train of a vehicle including the control apparatus of the present invention will be explained with reference to FIG. 1 . The vehicle control device in this example is realized by a program executed by an ECU (Electronic Control Unit) 100 shown in FIG. 1 .

[0034] As shown in FIG. 1 , the drive train of this vehicle is composed of an engine 1 , a torque converter 2 , an automatic transmission 3 , and an ECU 100 . Each part of engine 1, torque converter 2, automatic transmission 3, and ECU 100 will be described below.

[0035] (engine)

[0036] The amount of air sucked into the engine 1 is regulated by an electronically controlled throttle valve 11 . The throttle valve 11 can electronically control a throttle opening degree independently of the driver's operation of an accelerator pedal, and the opening degree (throttle valve open...

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PUM

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Abstract

The invention relates to a control equipment for a vehicle. In an embodiment method of the invention, when returning from the neutral control, an air damper is slowly opened unrelated to the rolling reduction of the accelerator pedal by drivers from the return of the neutral control after the delayed time, thereby restraining the early increase of the motor torque. Besides, the braking pressure is smoothly released from the neutral control return after the delayed time. By the method, the environment (opening of the air damper, braking pressure) returning from the neutral control is suitably set considering the joint of the forward clutch, thereby restraining the impact when returning from the neutral control.

Description

technical field [0001] The present invention relates to a control apparatus for a vehicle equipped with an internal combustion engine (hereinafter also referred to as an engine) and an automatic transmission. More specifically, the present invention relates to a vehicle control apparatus that performs neutral control that places an automatic transmission that stops a vehicle in a neutral state and brake hold that maintains a braking force of a vehicle regardless of a driver's operation of a brake pedal. control. Background technique [0002] In an engine installed in a vehicle, an electronic throttle system is known, in which an actuator is provided that drives a throttle valve provided in an intake passage, the electronic throttle system can be independent of the driver's operation of the accelerator pedal And control the throttle opening. In the electronic throttle system, the throttle valve opening is controlled to obtain the optimum intake air amount (target intake air...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/04F16H63/50B60T7/12B60W10/00B60W10/04B60W10/06B60W10/10B60W10/11B60W10/115B60W10/18B60W10/184F02D29/00F02D29/02F02D41/04F16H59/18F16H59/42F16H59/54F16H59/68F16H61/68F16H61/684F16H61/686
CPCF16H2061/0488B60W10/115B60W30/18027B60W10/06F16H61/20B60W10/18F16H2312/02
Inventor 上岛启史沟渕真康
Owner TOYOTA JIDOSHA KK
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