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Braking systems for motor vehicles

A technology for braking systems and motor vehicles, applied in the direction of brakes, etc., can solve the problems of large quantity and high manufacturing cost of braking systems, and achieve the effect of saving space

Inactive Publication Date: 2018-08-07
CONTINENTAL TEVES AG & CO OHG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the previously disclosed braking system is the large number of valves, which leads to high manufacturing costs of the braking system
A further disadvantage is the large number of valves that must be activated for normal braking in the "brake-by-wire" operating mode

Method used

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  • Braking systems for motor vehicles
  • Braking systems for motor vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] figure 1 The brake system shown in basically comprises a hydraulic actuating unit 1 which can be actuated by means of an actuating or brake pedal not shown, a pressure medium reservoir associated with the hydraulic actuating unit 1 with an electrical fill level warning device 3 2. Brake pedal stroke simulator 4 cooperating with hydraulic operating unit 1, electrically controllable pressure supply device 5, electrically controllable pressure modulating valve or inlet valve 6a-6d and outlet valve 7a-7d, not shown The wheel brakes 8 , 9 , 10 , 11 of the outgoing motor vehicle are connected to the pressure regulating valves or inlet and outlet valves. In parallel with the outlet valves 7b, 7d of the wheel brakes 9 and 11 assigned to the front axle of the vehicle, for example, non-return valves 57b, 57d are connected in parallel to the brake master cylinder 1, wherein the outlet valves 7a-7d are designed as constant Open (SO) 2 / 2 directional valve with analog control. In t...

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PUM

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Abstract

The invention relates to a brake system for a motor vehicle which has several operating modes and which, in the preferably used "brake-by-wire" operating mode, can be controlled not only by the driver of the vehicle but also The control is independent of the driver of the vehicle and can only be controlled directly by the driver of the vehicle in the standby mode. In order to reduce the number of continuously energized valves required to adjust the brake pressure in normal operation, the invention proposes that mechanisms (38, 50, 51) are provided which allow pressure During the reduction, the pressure on the pressure compensation connection (49) of the second pressure chamber (18a, 18b) is maintained at the level of the pressure supply device (5) and the pressure reduction volume flow is guided from the pressure compensation connection (49) to the pressure Provide device (5).

Description

technical field [0001] The invention relates to a braking system for a motor vehicle. Background technique [0002] Such a braking system for a motor vehicle is known, for example, from DE 10 2011 081 463 A1. The previously known brake system comprises a brake master cylinder with two pressure chambers, which can be operated by means of a brake pedal, wheel brakes, an electrically controllable pressure supply device, pressure with two valves for each wheel brake Control valve arrangement, two additional isolating valves for each brake circuit and a brake pedal travel simulator for decoupling the master cylinder pressure chamber from the wheel brakes in "brake-by-wire" operating mode If a coupling is required, the brake pedal travel simulator is connected to the pressure chamber of the brake master cylinder and can be switched on and off via the simulator release valve. In order to achieve a high availability of the brake system even in standby mode, the brake system compri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/40
CPCB60T8/4086
Inventor H-J·法伊格尔
Owner CONTINENTAL TEVES AG & CO OHG