Vehicle speed control apparatus

A technology of vehicle speed control and automatic control device, which is applied in the direction of control device, speed/acceleration control, electrical control, etc., and can solve the problems of complicated operation by drivers.

Active Publication Date: 2006-11-15
ADVICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, there is a problem that th...

Method used

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  • Vehicle speed control apparatus
  • Vehicle speed control apparatus

Examples

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no. 1 example

[0058] figure 1 It schematically shows a vehicle in which the speed control device 10 according to the first embodiment of the present invention is installed. The vehicle shown is a front-wheel drive vehicle, and its two front wheels are driving wheels.

[0059] The speed control device 10 includes a driving force transmission mechanism component 20, which can generate driving force and transmit driving force to the driving wheels FL, FR, RL and RR; a brake hydraulic pressure control device 30, which uses the brake hydraulic pressure on each wheel A braking force is generated in the system; a sensor component 40 including various sensors; and an electronic control device 50.

[0060] The driving force transmission mechanism component 20 includes an engine 21 that generates driving force; a throttle valve actuator 22, which includes a DC motor, and the motor can control the opening of a throttle valve TH (throttle valve opening TA). In the intake pipe 21a of the engine 21, the op...

no. 2 example

[0162] Next, a vehicle speed control device according to a second embodiment of the present invention will be described. The second embodiment differs from the first embodiment in that the uphill speed control is controlled by the throttle opening control instead of the downhill speed control by the brake hydraulic pressure. Therefore, the following will mainly introduce the differences.

[0163] Overview of uphill speed control

[0164] Hereinafter, an overview of the uphill speed control, which is executed according to the speed control device 10 (hereinafter referred to as "this device") of the second embodiment of the present invention, will be described. When the vehicle is on an uphill slope and the driver wants to maintain the vehicle's body speed at a desired value, the accelerator pedal AP must be continuously operated. In other words, when the vehicle is on an uphill slope, there is a great need for automatic control that can keep the speed of the vehicle body constant, ...

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Abstract

This apparatus determines that a driver demands the maintenance of a vehicle body speed from a cancel operation (ON->OFF) of an acceleration requiring operation by an accelerator pedal or a cancel operation (ON->OFF) of a deceleration requiring operation by a brake pedal BP, so that it detects a 'body-speed-maintenance requiring operation' (at time t 1 ), and stores the vehicle body speed Vso at the point of the detection as a 'required maintenance vehicle speed Vref'. When the apparatus determines that the vehicle is on a downhill after the detection of the 'body-speed-maintenance requiring operation' (time t 2 ), it feedback-controls the brake hydraulic pressure Pw to thereby start and execute the automatic control (downhill speed control) of the vehicle body speed Vso such that the vehicle body speed Vso is maintained at the required maintenance vehicle speed Vref.

Description

Technical field [0001] The application relates to a vehicle speed control device that can automatically control the speed of the vehicle body. Background technique [0002] Generally, such a vehicle speed control device is well known. For example, the following reference patent document 1 discloses a driving control device that can detect a vehicle body speed maintenance demand operation performed by a driver through an operation of an automatic driving switch (ON operation), and provide an automatic control to control the vehicle The body speed of the vehicle remains at the target speed. [0003] [Patent Document 1] [0004] Japanese Patent Application Publication No. 2002-089314 [0005] In the device disclosed in the above-mentioned document, the driver must operate an automatic driving switch in order to activate the automatic control of the vehicle body speed of the vehicle. In other words, once the driver needs to activate the vehicle's body speed automatic control (that is...

Claims

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Application Information

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IPC IPC(8): B60K31/00B60T7/12B60T8/172B60W30/00B60W30/14F02D29/02F02D41/20
CPCB60T8/00B60T2201/04B60W10/06B60W10/184B60W40/105B60W2552/15
Inventor 森雪生小久保浩一
Owner ADVICS CO LTD
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