Compensation device for a brake system, and brake system having a compensation device of this type

A technology for compensating equipment and braking system, applied in the direction of braking control system, braking transmission device, brake, etc., can solve problems such as reducing braking effect

Inactive Publication Date: 2014-07-02
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Therefore, in hydraulic brake systems with friction braking, a variable compensation volume is provided, which abs

Method used

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  • Compensation device for a brake system, and brake system having a compensation device of this type
  • Compensation device for a brake system, and brake system having a compensation device of this type
  • Compensation device for a brake system, and brake system having a compensation device of this type

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Embodiment Construction

[0034] exist Figure 1a and 1b A brake system 1 for actuating a hydraulic brake system 6 of a motor vehicle, for example a disc brake, is schematically shown in FIG. The braking system 1 comprises a brake pedal 2 which can be activated by the driver of the motor vehicle with a pedal force F 踏板 to operate. Brake pedal 2 is mechanically coupled to brake booster 3 , which acts with an additional force F 辅助 The braking force applied when the driver operates the brake pedal 2 is increased. Increased braking force in braking system 1 with spring force F 1 , F 2 , F 3 The force of the symbolic representation acts oppositely. These forces can include spring forces, frictional forces, or other forces.

[0035] The increased braking force acts on the hydraulic cylinder 4 , which reduces the cylinder volume and thus increases the brake fluid pressure in the brake line 5 when the brake pedal 2 is actuated. The brake line 5 is directly connected to a hydraulic brake system 6 in ord...

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Abstract

The invention relates to a compensation device (9) having a variable compensation volume (13, 22) for use in a brake system (1) in order to carry out a recuperation operation, comprising: an electrohydraulic actuator (10) for providing a variable compensation volume (13, 22); and a guard valve (15) which is configured to separate the compensation volume (13, 22) from an inlet-side inlet volume (31) with respect to an external pressure change if an absolute pressure in the inlet volume (31) exceeds a predefined pressure threshold value. Furthermore, the invention relates to a motor-vehicle brake system having a compensation device of this type.

Description

technical field [0001] The invention relates to a brake system for a motor vehicle, in particular a brake system with a variable compensation volume for accommodating brake fluid during regenerative operation. Background technique [0002] In hybrid or purely electric drive systems for motor vehicles, part of the kinetic energy generated by the drive motor can be converted into electrical energy and fed back into the energy store of the vehicle. However, motor vehicles of this type require a braking system which allows a part of the provided braking torque to be realized through the energy absorption of the drive motor operating in generator mode without thereby increasing the overall provided braking moment. [0003] In hydraulic brake systems with friction braking, therefore, a variable compensation volume is provided which absorbs part of the pressure of the hydraulic fluid and thus reduces the braking effect achieved by the brake fluid pressure. At the same time, the d...

Claims

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Application Information

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IPC IPC(8): B60T8/00B60T13/58
CPCB60T8/00B60T11/232B60T2270/604B60T13/586
Inventor M-P·博尔茨
Owner ROBERT BOSCH GMBH
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