US 12,434,677 B2
Redundant parking brake apparatus for a vehicle and method of operating the same
Thomas J. Hayes, Lakewood, OH (US); and Jeswanth Samayamantula, Avon Lake, OH (US)
Assigned to BENDIX COMMERCIAL VEHICLE SYSTEMS LLC, Avon, OH (US)
Filed by BENDIX COMMERCIAL VEHICLE SYSTEMS LLC, Avon, OH (US)
Filed on Aug. 29, 2023, as Appl. No. 18/239,331.
Prior Publication US 2025/0074373 A1, Mar. 6, 2025
Int. Cl. B60T 8/92 (2006.01); B60Q 9/00 (2006.01); B60T 13/38 (2006.01); B60T 13/68 (2006.01); B60T 17/22 (2006.01)
CPC B60T 8/92 (2013.01) [B60Q 9/00 (2013.01); B60T 13/385 (2013.01); B60T 13/683 (2013.01); B60T 17/22 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A redundant parking brake apparatus for a vehicle having components of a parking brake system, the redundant parking brake apparatus comprising:
a first parking brake controller arranged to (i) monitor a first signal indicative of a request to apply parking brakes of the vehicle, and (ii) provide one or more control signals to be applied to components of the parking brake system to apply the parking brakes in response to receiving the first signal, wherein the first signal is received from a virtual driver controller of an autonomously-driven vehicle; and
a second parking brake controller arranged to (i) initiate a timer counter in response to receiving the first signal, and (ii) provide one or more control signals to be applied to components of the parking brake system to apply the parking brakes when the timer counter has reached a predetermined count.