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Brake control device for vehicle

一种制动控制、车辆的技术，应用在制动器等方向，能够解决难以实现ABS控制、不能获得车辆充分减速、不同等问题

Inactive Publication Date: 2007-09-19
ADVICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, if the vehicle is running on a sudden change in the friction coefficient from a high value to a low value, it is impossible to immediately change the motor speed from the speed suitable for the high friction road to the speed suitable for the low friction road, because The speed suitable for high-friction roads is significantly different from the speed suitable for low-friction roads
Therefore, sufficient deceleration of the vehicle cannot be obtained in the ABS control, and thus it is difficult to achieve proper ABS control

Method used

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  • Brake control device for vehicle
  • Brake control device for vehicle
  • Brake control device for vehicle

Examples

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no. 1 example

[0037] The vehicle brake control device according to the first embodiment of the present invention is applicable to a vehicle having an X-shaped hydraulic circuit including two pipeline systems, one of which is used for the right front wheel and the left rear wheel, and The other one is used for the left front wheel and the right rear wheel.

[0038] As shown in Figure 1, the vehicle brake control device includes a brake pedal 1, a depression force sensor 2, a master cylinder (hereinafter referred to as M / C) 3, a stroke control valve SCSS, a stroke simulator 4, and a brake The hydraulic pressure controls the actuator 5 and wheel cylinders (hereinafter referred to as W / C) 6FL, 6FR, 6RL, 6RR, and the brake ECU 100 shown in FIG. 2.

[0039] When the driver steps on the brake pedal 1 as an example of a brake operation member, the pedal force applied to the brake pedal 1 is input to the pedal force sensor 2, and the pedal force sensor 2 outputs a detection signal corresponding to the a...

no. 2 example

[0120] The second embodiment of the present invention will be described. In this embodiment, the partial configuration of the vehicle brake control device is different from that in the first embodiment, but the overall configuration is basically the same as that of the first embodiment, so only the parts different from the first embodiment will be described.

[0121] FIG. 7 is a diagram showing the hydraulic circuit configuration of the vehicle brake control device according to this embodiment. As shown in FIG. 7, in the vehicle brake control device of this embodiment, the brake line G is divided into two brake lines Ga and Gb. The first normally closed valve SWC1 is located in the brake line Ga (that is, downstream of the dividing point of the lines Ga and Gb and upstream of the brake lines H1 and H2). The second normally closed valve SWC2 is located in the brake line Gb (that is, downstream of the dividing point and upstream of the brake lines H3 and H4).

[0122] If the vehicle...

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Abstract

In an ABS control, a vehicle brake control device detects a sudden change road in which a friction coefficient changes suddenly from a high value to a lower value and controls, based on the detection of the sudden change road, the currents to be supplied to a first and a second electrical motor in a first manner or a second manner, wherein in the first manner the currents are controlled so that the first and second electrical motors would eventually stop rotating if the motor control portion kept controlling the currents in the first manner for a sufficiently long time, and in the second manner the currents are controlled so that the first and second electrical motors would eventually start rotating in a reverse direction if the motor controlling portion kept controlling the currents in the second manner for a sufficiently long time.

Description

[0001] Cross references to related applications [0002] This application is based on Japanese Patent Application No. 2006-67438 filed on March 13, 2006, and is incorporated herein by reference. Technical field [0003] The present invention relates to a vehicle brake control device that generates pressure (hereinafter referred to as W / C pressure) in a wheel cylinder (hereinafter referred to as W / C) by causing a pump to apply pressure. Background technique [0004] In Japanese Patent Publication No. H10-203338, a brake-by-wire vehicle brake control device is proposed, which has four pumps for the four wheels of the vehicle, respectively. Two of the four pumps are located in a common pipeline system for two of the four wheels, and are driven by a common motor. The other two of the four pumps are located in another common piping system for the other two of the four wheels, and are driven by another common motor. [0005] The aforementioned vehicle brake control device uses each moto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/17B60T8/32
CPCB60T13/161B60T8/4059B60T8/4081
Inventor 佐藤卓新野洋章
Owner ADVICS CO LTD
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