# US 10,246,070 B2 · Brake system control unit for a vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,246,070 B2 - Document ID: US10246070B2 - Status: Granted - Kind: B2 - Application number: 15/709,513 - Filed: 2017-09-20 - Published: 2018-03-22 - Granted: 2019-04-02 - Earliest claimed: 2016-09-22 - Assignees: Robert Bosch GmbH - Applicants: Robert Bosch GmbH - Inventors: Frank Baehrle-Miller; Peter Rebholz-Goldmann - Web page: https://patentgrep.com/patent/US10246070B2 ## CPC - B60T 13/662: {characterised by specified functions of the control system components} - B60T 7/042: {by electrical means, e.g. using travel or force sensors} - B60T 8/171: Detecting parameters used in the regulation; Measuring values used in the regulation - B60T 13/588: {both fluid and mechanical assistance or drive} - B60T 13/741: {acting on an ultimate actuator} - B60T 13/746: {and mechanical transmission of the braking action} - B60T 17/22: Devices for monitoring or checking brake systems; Signal devices - B60T 2220/04: Pedal travel sensor, stroke sensor; Sensing brake request - B60T 2270/40: Failsafe aspects of brake control systems - B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES ## Abstract A brake system control unit for a vehicle having a hydraulic vehicle brake and electromechanical brake device comprises a microcontroller, a system ASIC and a brake motor ASIC, wherein the microcontroller is connected to the system ASIC and the brake motor ASIC via communication interfaces. In the brake motor ASIC, an interrogation signal sequence for interrogating the switched state of an actuation switch of the electromechanical brake device is generated. ## Claims ### Claim 1 A brake system control unit for a vehicle having a hydraulic vehicle brake and an electromechanical brake device including at least one electric brake motor, the brake system control unit comprising: a microcontroller configured to actuate at least one active brake component; a system ASIC configured to acquire sensor signals; and a brake motor ASIC configured to acquire sensor signals, the brake motor ASIC being configured to generate an interrogation signal sequence configured to interrogate a switched state of an actuation switch of the electromechanical brake device, wherein the actuation switch of the electromechanical brake device is configured to generate a response signal sequence as a function of the switched state and in reaction to the interrogation signal sequence, the response signal sequence being fed to the brake motor ASIC for evaluation, wherein the microcontroller is connected to the system ASIC and the brake motor ASIC via communication interfaces. ### Claim 2 (depends on 1) The brake motor control unit according to claim 1, wherein the system ASIC is configured to acquire wheel rotational speed signals. ### Claim 3 (depends on 1) The brake motor control unit according to claim 1, wherein the brake motor ASIC is configured to acquire wheel rotational speed signals. ### Claim 4 (depends on 1) The brake motor control unit according to claim 1, wherein the system ASIC and the brake motor ASIC are each configured to acquire pedal travel encoder signals of a brake pedal. ### Claim 5 A method for operating a brake system control unit for a vehicle having a hydraulic vehicle brake and an electromechanical brake device including at least one electric brake motor, the brake system control unit including (i) a microcontroller configured to actuate at least one active brake component, (ii) a system ASIC configured to acquire sensor signals, and (iii) a brake motor ASIC configured to acquire sensor signals, the microcontroller is being connected to the system ASIC and the brake motor ASIC via communication interfaces, the method comprising: generating, with the brake motor ASIC, an interrogation signal sequence configured to interrogate a switched state of an actuation switch of the electromechanical brake device, the actuation switch of the electromechanical brake device being configured to generate a response signal sequence as a function of the switched state and in reaction to the interrogation signal sequence, the response signal sequence being fed to the brake motor ASIC for evaluation; and generating a braking force, in response to one of (i) a failure of the microcontroller, (ii) a failure of the system ASIC, and (iii) a failure of one of the communication interfaces, by actuating the electric brake motor as a function of the switched state of the actuation switch of the electromechanical brake device using the brake motor ASIC. ### Claim 6 (depends on 5) The method according to claim 5 further comprising: feeding, continuously and at cyclical intervals, the interrogation signal sequence to the actuation switch of the electromechanical brake device. ### Claim 7 (depends on 5) The method according to claim 5 further comprising: generating the braking force, in response to the one of (i) the failure of the microcontroller, (ii) the failure of the system ASIC, and (iii) the failure of one of the communication interfaces, by actuating the electric brake motor until a motor brake current of the electric brake motor reaches a defined maximum using the brake motor ASIC. ### Claim 8 (depends on 5) The method according to claim 5 further comprising: generating the braking force, in response to the one of (i) the failure of the microcontroller, (ii) the failure of the system ASIC, and (iii) the failure of one of the communication interfaces, by actuating the electric brake motor for a defined time period using the brake motor ASIC. ### Claim 9 A brake system for a vehicle, the brake system comprising: a hydraulic vehicle brake; an electromechanical brake device including at least one electric brake motor and an actuation switch; and a brake system control unit configured to actuate adjustable brake system components of the brake system, the brake system control unit comprising: a microcontroller configured to actuate at least one active brake component; a system ASIC configured to acquire sensor signals; and a brake motor ASIC configured to acquire sensor signals, the brake motor ASIC being configured to generate an interrogation signal sequence configured to interrogate a switched state of the actuation switch of the electromechanical brake device, wherein the actuation switch of the electromechanical brake device is configured to generate a response signal sequence as a function of the switched state and in reaction to the interrogation signal sequence, the response signal sequence being fed to the brake motor ASIC for evaluation, wherein the microcontroller is connected to the system ASIC and the brake motor ASIC via communication interfaces. ### Claim 10 (depends on 9) The brake system according to claim 9, wherein the hydraulic vehicle brake includes an electrically controllable actuator configured to influence a hydraulic pressure. ### Claim 11 (depends on 9) The brake system according to claim 9, wherein wheel brake devices on a rear axle of the vehicle include the at least one electric brake motor. ### Claim 12 (depends on 9) The brake system according to claim 9, wherein the brake system is included in the vehicle.