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Brake system, stroke simulator disconnecting mechanism, and stroke simulator disconnecting method

A stroke simulator and braking system technology, applied in the direction of brakes, simulators, general control systems, etc., can solve the problem of non-contribution of braking force and achieve effective utilization

Inactive Publication Date: 2008-01-16
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in reality, when the stroke simulator is in the process of being disconnected from the master cylinder, a certain amount of hydraulic fluid flows out from the master cylinder to the stroke simulator, and the hydraulic fluid flowing out to the stroke simulator at this time is important for generating braking force and no contribution

Method used

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  • Brake system, stroke simulator disconnecting mechanism, and stroke simulator disconnecting method
  • Brake system, stroke simulator disconnecting mechanism, and stroke simulator disconnecting method
  • Brake system, stroke simulator disconnecting mechanism, and stroke simulator disconnecting method

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Embodiment Construction

[0028] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0029] FIG. 1 is a diagram showing a brake control system 10 according to a first embodiment of the present invention. A brake control system 10 shown in FIG. 1 is an electronically controlled brake system (ECB) for a vehicle that independently controls four wheels provided on the vehicle in response to a brake pedal 12 being operated by a driver of the vehicle. brake device. The brake pedal 12 can be regarded as a brake control section. Although not shown in the drawings, the vehicle having the brake control system 10 according to the first embodiment further includes a steering device that steers the steered wheels among the four wheels of the vehicle, and a driving power source such as an internal combustion engine. and an electric motor that drives the drive wheels of the vehicle's four wheels.

[0030] The disc brake units 21FR, 21FL, 21RR, and 2...

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Abstract

A brake system includes a master cylinder that pressurizes hydraulic fluid when a brake control portion is operated; a stroke simulator that, when supplied with the hydraulic fluid pressurized by the master cylinder, produces reactive force in response to the operation of the brake control portion; and a stroke simulator disconnecting mechanism, provided in a hydraulic passage between the master cylinder and the stroke simulator, that mechanically interrupts the flow of the hydraulic fluid through the hydraulic passage when the hydraulic fluid is allowed to flow from the master cylinder to the wheel cylinder in response to the operation of the brake control portion. The stroke simulator disconnecting mechanism starts the disconnecting operation before the hydraulic fluid flows from the master cylinder to the stroke simulator.

Description

technical field [0001] The present invention relates to a brake system including a stroke simulator disconnect mechanism that interrupts a connection between a master cylinder and a stroke simulator that generates a reaction force in response to a driver's brake operation. Background technique [0002] A braking system of a vehicle includes a stroke simulator capable of traveling a brake pedal a distance corresponding to a force applied to the brake pedal, such as the one disclosed in JP-A-2000-95093. In such a brake system, during normal brake control, the flow of hydraulic fluid from the master cylinder to the wheel cylinders is interrupted, and the hydraulic fluid discharged from the master cylinder flows into the stroke in response to the driver's operation of the brake pedal. The simulator, followed by the stroke simulator, thus generates a reaction force. [0003] When, for example, some abnormality occurs such that hydraulic fluid needs to be supplied from the master...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T11/16G05B11/60G05B13/00G05B19/423
CPCB60T7/042B60T8/4081B60T8/409
Inventor 宫崎彻也冈野隆宏
Owner TOYOTA JIDOSHA KK