US 11,912,288 B2
Control system for moving object
Yasuhiro Harada, Aki-gun (JP)
Assigned to MAZDA MOTOR CORPORATION, Hiroshima (JP)
Filed by Mazda Motor Corporation, Hiroshima (JP)
Filed on Jan. 29, 2021, as Appl. No. 17/161,673.
Claims priority of application No. 2020-023625 (JP), filed on Feb. 14, 2020.
Prior Publication US 2021/0253114 A1, Aug. 19, 2021
Int. Cl. B60W 50/00 (2006.01); B60R 16/023 (2006.01); G05B 15/02 (2006.01)
CPC B60W 50/00 (2013.01) [B60R 16/0231 (2013.01); G05B 15/02 (2013.01); B60W 2050/0004 (2013.01); B60W 2050/0028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A control system that controls a plurality of hardware units of a vehicle having an engine, a transmission, and a brake, the control system comprising:
a single signal bus that transmits digital signals without including a relay electronic control unit (ECU) in the single signal bus;
a controller that includes at least a calculator to calculate an operation of the vehicle and a signal bus control integrated circuit (IC) for inputting and outputting the digital signals to and from the single signal bus; and
a plurality of ICs, that are attached to actuators, configured to control the hardware units and connected to the single signal bus, wherein an IC is provided for each of the actuators,
wherein the controller is configured to cause the calculator to perform calculation that determines an operation of the vehicle, generate a digital signal that defines an operation of the actuators according to a result of the calculation, and cause the signal bus control IC to output the generated digital signal to the single signal bus, and
the plurality of ICs obtain the digital signal that defines the operation of the actuators from the single signal bus and generate a control signal for the actuators based on the operation defined by the obtained digital signal,
wherein each of the ICs has only a function of converting the actuator motion specified by the digital signal into a control signal to be given to the actuator.