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Braking systems for motor vehicles

A technology of braking system and motor vehicle, which is applied in the direction of braking control system, brakes, braking components, etc., to achieve the effect of reliable connection

Active Publication Date: 2019-06-21
CONTINENTAL AUTOMOTIVE TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a disadvantage, it was observed in the brake system that the wheel brakes can only be actuated by the driver if the control or drive of the pressure supply device fails

Method used

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

Examples

Experimental program
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Effect test

Embodiment Construction

[0045] According to the first embodiment of the present invention figure 1 The braking system shown in has four hydraulically actuatable wheel brakes 8 , 9 , 10 , 11 which are preferably arranged in at least two brake circuits. The driver can initiate braking via the brake pedal. The brake actuation is detected by at least two mutually independent brake actuation sensors 505 a and 505 b , which are each advantageously designed redundantly. According to an example, the brake operation sensors 505a, 505b detect the operation force or operation stroke of the brake pedal 1 .

[0046] The braking system according to the example has a hydraulic control in the form of a hydraulic control unit (HCU) 300, to which is connected an electrically controllable first pressure source (A1) 301 and an electrically controllable second pressure Source (A2) 302 . The pressure sources 301 and 302 can also be part of the hydraulic control unit 300 , ie be integrated in said hydraulic control unit...

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PUM

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Abstract

The invention relates to a brake system for a motor vehicle, which in the "brake-by-wire" operating mode can be controlled not only by the driver but also independently of the driver, the brake system having: pedal (1); at least two hydraulically operable wheel brakes (8, 9, 10, 11); first and second brake operation sensors (505a, 505b); electrically controllable first pressure source (301, 5) Wheel brakes are operable by means of said first pressure source; a first electronic control unit (112, 12), which is connected to a first brake operation sensor (505a) and controls the first pressure source (301, 5) ; an electrically controllable second pressure source (302, 249), by means of which the wheel brakes can be operated; a second electronic control unit (139, 39), which communicates with a second brake operation sensor (505b) connecting and controlling a second pressure source (302, 249); a hydraulic control device (300) comprising, in particular, at least one first solenoid valve (26, 26a, 26b) between the wheel brakes and the first pressure source and at the wheel including at least one second solenoid valve (23, 23a, 23b) between the brake and the second pressure source; and data between the first electronic control unit (112, 12) and the second electronic control unit (139, 39) A connection device (53), wherein the first electronic control unit (112, 12) has a first interface (601), and the second electronic control unit (139, 39) has a second interface (602), wherein the first The interface and the second interface are not connected to each other.

Description

technical field [0001] The invention relates to a braking system for a motor vehicle. Background technique [0002] Hydraulic vehicle braking systems are known which are designed as external braking systems and which, in addition to the muscularly actuated brake master cylinder, comprise further electrically controllable pressure and volume supply devices, The wheel brakes are hydraulically connected to the master cylinder and supply the pressure and volume for actuating the wheel brakes, the pressure and volume supply device actuating the wheel brakes in the "brake-by-wire" operating mode. In the event of failure of the electrically controllable pressure and volume supply, the wheel brakes are actuated solely by the muscular force of the vehicle driver. [0003] Thus, for example, an electrohydraulic brake system is known from WO 2011 / 029812 A1, which has a brake master cylinder actuatable by the brake pedal, a stroke simulator and an electrically controllable pressure Pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/66B60T7/12B60T8/40
CPCB60T7/12B60T8/4072B60T8/409B60T13/66B60T7/22B60T8/321B60T8/4081B60T2270/413B60T7/042B60T8/4266B60T2220/04B60T2270/82
Inventor M·贝西尔S·德鲁姆
Owner CONTINENTAL AUTOMOTIVE TECH GMBH
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