Patent ID: 11951969
Assignee: ZF ACTIVE SAFETY US INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A control arrangement for a brake system having a plurality of electrically-controlled hydraulic valves, each valve including a coil, the control arrangement comprising:
a primary electronic control unit (“ECU”) including a primary microcontroller for selectively providing at least one of electrical power and a control signal to a load device and/or a coil in a normal non-failure braking mode;
a secondary ECU, electrically connected to the primary ECU via a power connector and a controller area network (“CAN”) communication bus, the secondary ECU obtaining electrical power from a wiring system of a vehicle associated with the brake system;
wherein a backup microcontroller is associated with a chosen one of the primary and secondary ECUs, the backup microcontroller receiving electrical power and a control signal from the secondary ECU, the backup microcontroller selectively providing at least one of electrical power and a control signal to the load device and/or coil in a backup braking mode responsive to the control signal from the secondary ECU.