US 12,472,917 B2
Brake system
Toshiaki Yanagi, Kariya (JP); and Yoshinori Inuzuka, Kariya (JP)
Assigned to DENSO CORPORATION, Aichi-pref. (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Dec. 13, 2023, as Appl. No. 18/538,668.
Application 18/538,668 is a continuation of application No. PCT/JP2022/021972, filed on May 30, 2022.
Claims priority of application No. 2021-118218 (JP), filed on Jul. 16, 2021.
Prior Publication US 2024/0116483 A1, Apr. 11, 2024
Int. Cl. B60T 8/92 (2006.01); B60T 7/04 (2006.01); B60T 8/171 (2006.01); B60T 8/88 (2006.01); B60T 17/22 (2006.01); G01B 7/30 (2006.01); G01D 5/20 (2006.01)
CPC B60T 8/92 (2013.01) [B60T 7/042 (2013.01); B60T 8/171 (2013.01); B60T 8/885 (2013.01); B60T 17/22 (2013.01); G01B 7/30 (2013.01); G01D 5/20 (2013.01); B60T 2220/04 (2013.01); B60T 2270/413 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A brake system configured to drive and control a brake circuit that performs braking of a vehicle, the brake system comprising:
a brake pedal device having a brake pedal that is oscillatably provided around a predetermined axis with respect to a fixed body fixed to the vehicle;
a position detection device having at least four sensors that output signals according to an operation amount of the brake pedal depressed by a driver;
a first electronic control unit into which output signals of at least two of the at least four sensors are input in a distinguishable manner;
a second electronic control unit into which among the at least four sensors, output signals of at least two other sensors other than the sensor whose output signals are input to the first electronic control unit are input in a distinguishable manner; and
a signal transmission unit configured to transmit the output signals of the at least two sensors input to one of the first electronic control unit and the second electronic control unit to the other of the first electronic control unit and the second electronic control unit in a distinguishable manner wherein
the first electronic control unit and the second electronic control unit identify an output signal indicating an abnormal value based on the output signals of at least four of the sensors, detect an operation amount of the brake pedal based on the plurality of output signals excluding the abnormal value, and drive and control the brake circuit, and
each of the at least four sensors included in the position detection device is a rotation angle sensor that outputs a signal corresponding to an angle at which the brake pedal oscillates around a predetermined axis as the operation amount of the brake pedal.