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vehicle brake control

A technology of brake control and wheel brake cylinder, which is applied in the direction of brake transmission device, automatic starting device, brake, etc.

Active Publication Date: 2021-07-20
ADVICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the automatic braking process that operates both the hydraulic brake device and the electric brake device, there is still room for improvement in the increase in the speed of increase in vehicle body deceleration at the start of the implementation.

Method used

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  • vehicle brake control
  • vehicle brake control
  • vehicle brake control

Examples

Experimental program
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Embodiment Construction

[0014] Below, based on Figure 1 ~ Figure 3 One embodiment of a brake control device for a vehicle will be described.

[0015] figure 1 The functional configuration of the control device 100 as the braking control device of the present embodiment and the schematic configuration of the braking system 10 controlled by the control device 100 are shown in the figure. The brake system 10 includes: a plurality of (ie, the same number as the wheels) brake mechanisms 20a, 20b, 20c, and 20d independently provided on the wheels FL, FR, RL, and RR; as an example of an electric brake device The electric parking device 30; and the hydraulic brake device 40.

[0016] Each of the brake mechanisms 20a to 20d includes: a wheel cylinder 21 for supplying brake fluid; a disk rotor 22 as an example of a rotating body integrally rotating with the wheels FL, FR, RL, and RR; The direction in which the rotor 22 approaches and the direction in which it moves away relatively move the friction member ...

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PUM

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Abstract

The present invention provides a braking control device for a vehicle capable of increasing the rate of increase in the vehicle body deceleration of the vehicle at the start of automatic braking processing. A control device (100) as a braking control device includes: an acquisition unit (110) for acquiring an index; and a braking control unit (120) for starting automatic braking processing when it is determined based on the index that an automatic braking condition is satisfied. . The brake control unit (120) limits the supply of brake fluid to the wheel cylinders (21) corresponding to the rear wheels (RL, RR) and supplies the brake fluid to the wheel cylinders (21) corresponding to the front wheels (FL, FR) during the automatic braking process. The wheel cylinder (21) supplies brake fluid and increases the WC pressure of the wheel cylinder (21) to increase the braking force for the front wheels (FL, FR), and it is connected with the parking motor (31 ) is applied to the rear wheels (RL, RR) with a braking force corresponding to the driving amount.

Description

technical field [0001] The present invention relates to a brake control device for a vehicle that executes automatic braking processing that decelerates the vehicle in order to suppress a collision between an obstacle in front of the vehicle and the vehicle. Background technique [0002] Patent Document 1 describes a hydraulic brake device that controls the hydraulic pressure in the wheel cylinder to adjust the braking force on the wheels, and an electric brake device that applies the braking force corresponding to the driving amount of the electric motor to the wheels by driving the electric motor. An example of a braking system for a braking device. [0003] In such a brake system, when the braking force to the wheels is increased by the operation of the hydraulic brake device, the opening of the differential pressure regulating valve arranged in the fluid passage connecting the wheel brake cylinder and the master cylinder is adjusted. and drain the brake fluid from the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T7/12B60T13/66B60T13/74F16D65/16F16D121/24
CPCB60T7/12B60T13/12B60T13/66B60T13/74F16D63/00F16D65/16B60T8/267B60T8/1766B60T2201/022B60T8/321B60T8/34B60T8/86
Inventor 浦冈照薰
Owner ADVICS CO LTD