US 11,634,111 B2Granted

Brake system and method for braking a motor vehicle

AssigneeRobert Bosch GmbH

InventorsDirk Mahnkopf, Volker Mehl

Life of this patent

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Abstract

A brake system for a motor vehicle, having a first hydraulic brake device configured to brake wheels on a first axle of the motor vehicle, a first control unit configured to control the braking operation of the wheels on the first axle; and a second hydraulic brake device configured to brake the wheels on a second axle of the motor vehicle, and a second control unit configured to control the braking operation of the wheels on the second axle. The first control unit is coupled with the second control unit via a communication channel. The first control unit and the second control unit are each configured to receive data that are relevant for the control of the braking operation, the first control unit furthermore being configured to transmit a data signal on the basis of the received data via the communication channel to the second control unit.

Claims10

Dependent claims

A brake system for a motor vehicle, comprising:

a first hydraulic brake device which is configured to brake wheels on a first axle of the motor vehicle, the first hydraulic brake device including a first control unit which is configured to control a braking operation of the wheels on the first axle of the motor vehicle;
and
a second hydraulic brake device which is configured to brake wheels on a second axle of the motor vehicle, the second hydraulic brake device including a second control unit configured to control a braking operation of the wheels on the second axle of the motor vehicle, the first control unit being coupled with the second control unit via a communication channel;
wherein the first control unit and the second control unit are each configured to receive data that are relevant for the control of the braking operation, and the first control unit is further configured to transmit a data signal, based on the received data, via the communication channel to the second control unit, and
wherein the second control unit is configured to transmit a further data signal, based on the received data, via the communication channel to the first control unit, and when the communication channel is intact, the first control unit is configured to carry out the braking operation of the wheels of the first axle using the further data signal.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/918,354Filed 1 Jul 2020
Priority: DE 102019210271.911 Jul 2019
Published: US 2021/0009096 A114 Jan 2021
Granted: 25 Apr 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

B60T 8/266
Characterised by producing differential braking between front and rear wheels: using valves or actuators with external control means
B60T 8/322
Deceleration: systems specially adapted for vehicles driven by more than one axle, e.g. Four Wheel-Drive vehicles
B60T 8/3635
In hydraulic systems: switching between more than two connections, e.g. 3/2-valves
B60T 8/364
In hydraulic systems: switching between a number of discrete positions as a function of the applied signal, e.g. 3/3-valves