US 12,330,618 B2
Failsafe braking systems with independent braking actuations for autonomous or assisted driving vehicles
Baoping Yuan, Sunnyvale, CA (US); and Yaoming Shen, Sunnyvale, CA (US)
Assigned to Apollo Autonomous Driving USA LLC, Sunnyvale, CA (US)
Filed by Apollo Autonomous Driving USA LLC, Sunnyvale, CA (US)
Filed on Nov. 17, 2022, as Appl. No. 18/056,606.
Prior Publication US 2024/0166182 A1, May 23, 2024
Int. Cl. B60T 8/88 (2006.01); B60T 13/66 (2006.01)
CPC B60T 8/885 (2013.01) [B60T 13/662 (2013.01); B60T 2270/413 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A braking system for a computer assisted driving vehicle, the braking system comprising:
a first braking sub-system powered by a first power source, the first braking sub-system comprising:
a first electric motor to generate a first pressure providing hydraulic power to two or more sets of braking actuators,
a first plurality of valves receiving the hydraulic power and operable to vary respective actuating braking pressures at the two or more sets of braking actuators, and
a controlling device to operate the first plurality of valves for varying the respective actuating braking pressures, wherein the controlling device controls the two or more sets of braking actuators to independently perform primary braking procedures; and
at least one switch valve to switch the first braking sub-system to a second braking sub-system upon detecting that at least one of the primary braking procedures is malfunctioning.