A control device for vehicle-mounted equipment according to the present invention includes a first sensor, a second sensor, a first microprocessor, and a second microprocessor. The second microprocessor generates a second sensor data request signal for requesting the second sensor to transmit second sensor data. The first microprocessor determines whether an abnormality has occurred in the second microprocessor based on the second sensor data or the second sensor data request signal, and based on a signal relating to information on the second microprocessor which is transmitted from a second inter-microcomputer communication unit of the second microprocessor.

The present disclosure relates to a power assist control apparatus and a power assist control method. The power assist control apparatus according to the present disclosure comprises: a main motor driven at a first rotation speed; a sub-motor driven at a second rotation speed; and a controller which receives steering information from a steering wheel to calculate a target rotation speed value of an output shaft, and controls the main motor and the sub-motor such that the output shaft is rotated at the target rotation speed.

A system includes a steering-system motor, a first ECU and a second ECU each electrically connected to the steering-system motor, a communication line directly communicatively connecting the first ECU and the second ECU, and a gateway module communicatively connecting the first ECU to a CAN bus and communicatively connecting the second ECU to the CAN bus. The first ECU is programmed to, upon detecting a fault, transmit a fault code to the second ECU via the communication line and via the gateway module. The second ECU is programmed to, upon detecting a fault, transmit a fault code to the first ECU via the communication line and via the gateway module.

A control device for a motor including a first coil and a second coil which are insulated from each other is provided. The control device includes a first circuit and a second circuit that switches a first process to a second process when the first circuit fails. The external circuit generates an instruction for performing a process of increasing an amount of operation which is calculated by one of the first circuit and the second circuit according to the number of control systems when the other of the first circuit and the second circuit fails.

In a method for operating a control device for controlling an electric motor, in particular a steering system, in which the control device includes at least one power supply, at least one power element which is operatively connected to the power supply, at least one reverse polarity protection switch arranged in a power current path between the power supply and the power element, and at least one logic unit, at least one first voltage value correlated with an intermediate circuit voltage and at least one second voltage value correlated with a supply voltage of the logic unit are determined and linked to one another and evaluated to determine a faulty actuation of the reverse polarity protection switch.

The disclosure relates to a steering system and a method for controlling the same. According to an embodiment, a steering system comprises an electric power steering (EPS) steering motor connected to a first inverter and a second inverter, an additional motor connected to the second inverter and providing a steering-related additional function, a main electric control unit (ECU) including the first inverter and controlling the EPS steering motor through the first inverter, and a sub ECU including the second inverter and controlling at least one of the EPS steering motor or the additional motor based on at least one of main ECU state information or vehicle driving state information.

A redundant control device for a three-phase electric motor of a steering system of a motor vehicle, having a primary control path and a secondary control path. The primary control path has a primary processing unit, and the secondary control path has a secondary processing unit. The primary control path is connected to a first phase winding of the electric motor, and the secondary control path is connected to a second phase winding and a third phase winding for actuating the electric motor, wherein each phase winding is assigned an individual converter.

A steering control system for operating a steering system for a transportation vehicle according to a steering intervention specification by making available a steering intervention variable, the system having computing units to redundantly calculate a manipulated variable according to a specified calculation algorithm as a function of the steering intervention specification and one or more operating state variables; a switching device for always making available one of the manipulated variables of the computing units as the steering intervention variable to the steering system; and a monitoring device to check the functional capability of the computing units, wherein the switching device is actuated as a function of the result of the check.

A steering apparatus and method for a vehicle. Steering controllers are connected via an internal communications network. Each of the steering controllers monitors the operating state of another steering controller using the internal communications network, so that, if one of the steering controllers currently controlling the steering motor operates abnormally, the steering motor is controlled by at least one steering controller of the remaining steering controllers.

Method for monitoring the operation of a power steering system including a steering wheel, a servo motor and a monitoring module, characterized in that said method involves a step of determining at least one temporary limit value of a parameter, a step of estimating an additional value which an assistance functionality contributes to a setpoint value of the parameter, and a step of correcting the at least one temporary limit value by the additional value.