A test unit for an actuation device of an electrical apparatus is configured as an ASIC and includes a test circuit configured to generate a voltage test sequence, a memory configured to store a response pattern, and an analysis unit configured to compare the response pattern with a reference pattern.

Provided is a dump truck capable of performing an actuation test of an emergency brake system at an appropriate timing. The dump truck comprises: front wheel and rear wheel emergency brake systems, each system including an accumulator that accumulates hydraulic oil supplied from a hydraulic pump, a brake device that is actuated by the hydraulic oil supplied from the accumulator, and a solenoid valve that opens and closes a flow path of the hydraulic oil extending from the accumulator to the brake device; and a controller configured to execute front test processing and rear test processing alternately (step S16/step S18) in the case of determining that the dump truck is stopped (step S11: Yes), a vessel is in a fallen position (step S12: YES), and a loading operation onto the vessel is completed (step S15: Yes/step S17: Yes).

A hydraulic system of a vehicle includes a first pump for supplying at least one first hydraulic circuit and at least one second pump for supplying at least one second hydraulic circuit with hydraulic medium. The second pump supplies the first hydraulic circuit with hydraulic medium in an emergency mode or when an output pressure of the first pump fails.

An electric brake apparatus includes a brake mechanism, a parking mechanism, and a main ECU and rear electric brake ECUs. The main ECU performs re-holding control (re-clamping) of, after holding a braking force by the parking mechanism, releasing the holding of the braking force with the braking force applied or maintained and further applying the braking force, and then holding the braking force by the parking mechanism after that. In this case, the main ECU does not release the braking force on a rear right wheel until completing the re-holding control on a rear left wheel side. Alternatively, the main ECU does not release the braking force on the rear left wheel side until completing the re-holding control on the rear right wheel.

A rear electric brake ECU includes a delay element. More specifically, the delay element is disposed between an arithmetic element of the rear electric brake ECU and a first switching element (an FET) for driving a solenoid of a parking mechanism. The delay element delays a signal for driving this first switching element. Further, the rear electric brake ECU includes a diagnosis device for diagnosing the actuation state of the arithmetic element. The diagnosis device is set so as to be able to shut off power supply to the solenoid regardless of the state of a signal (a driving signal) of the solenoid if diagnosing that the actuation state of the arithmetic element is abnormal.

The present invention discloses an electric parking brake control device capable of accurately determining operation of an electric actuator. The electric parking brake control device is capable of performing an application process for controlling the electric actuator to move in the direction in which a friction member is pressed against a rotation body that rotates integrally with a wheel and a release process for controlling the electric actuator to move in the direction in which the friction member is moved away from the rotation body. Even upon receiving (time t12) a new operation request for operating the electric actuator during a period (time t1 to t5) from the start of the application process or the release process to the completion of the process, the electric parking brake control device does not change the operation of the electric actuator on the basis of the operation request.

A braking system for an aircraft is disclosed herein. The braking system may comprise: a brake assembly; a hydraulic braking subsystem having a hydraulic brake actuator configured to operate the brake assembly; an electric braking subsystem and a hydraulic braking subsystem. During a flight, one of the electric braking subsystem and the hydraulic braking subsystem may be selected as a primary braking system. The braking system may be configured to command braking of a brake assembly by the hydraulic braking subsystem and the electric braking subsystem during an RTO phase of the flight. The braking system may be configured to command braking of a brake assembly by a secondary braking system in response to a failure of a primary braking system during the RTO phase of the flight.

A remote support system provides support to an autonomous drive system of a vehicle in response to a support request. The remote support may include guiding the autonomous drive system of the vehicle through a hazardous environment. A call to the remote support system may be initiated, for example, via a user interface control button or by scanning a bar code, QR code, or RFID associated with the vehicle on a device that sends the code with vehicle information to the remote support system. The remote support system may determine an urgency of the request to assess whether immediate support should be initiated or whether to first initiate a communication connection with a passenger. Furthermore, an emergency brake system of the vehicle may be triggered by the remote support system or in response to the vehicle losing a connection to the remote support system during a support request.

Provided is a dump truck capable of performing an actuation test of an emergency brake system at an appropriate timing. The dump truck comprises: front wheel and rear wheel emergency brake systems, each system including an accumulator that accumulates hydraulic oil supplied from a hydraulic pump, a brake device that is actuated by the hydraulic oil supplied from the accumulator, and a solenoid valve that opens and closes a flow path of the hydraulic oil extending from the accumulator to the brake device; and a controller configured to execute front test processing and rear test processing alternately (step S16/step S18) in the case of determining that the dump truck is stopped (step S11: Yes), a vessel is in a fallen position (step S12: YES), and a loading operation onto the vessel is completed (step S15: Yes/step S17: Yes).

The present disclosure provides a brake system having two independent control units and a method for controlling the same. The brake system includes a first brake control unit (S1) and a second brake control unit (S2). The first brake control unit (S1) and the second brake control unit (S2) are control units that independently complete a brake control function.