Patent classifications
B62D5/0493
System and method for calibrating a steering wheel neutral position
System, methods, and other embodiments described herein relate to calibrating a steering wheel in a steering system of a vehicle. In one embodiment, the disclosed calibration system detects an object in front of the vehicle based on first data generated by one or more front sensors of the vehicle, detects the object to the rear of the vehicle based on second data generated by one or more rear sensors of the vehicle, determines a trajectory of the object based on the first data and output data from a steering wheel sensor, determines an estimate position of the object based on the trajectory, determines that the second data indicates a difference exists between the estimate position of the object and an actual position of the object, and determines a correction offset adjustment to apply to the output data from the steering wheel sensor based on the difference.
Motor control system and semiconductor device
A motor control system includes a first MCU and a second MCU. The first MCU includes an error detection unit, a resolver digital converter, and a first PWM generation unit. The resolver digital converter includes an encoder unit, which generates encoder pulses based on angle information and outputs the encoder pulses to the second MCU. The error detection unit outputs an error signal to the second MCU, when an error is detected in the first MCU. The first MCU controls the resolver digital converter to operate using a backup clock supplied from the second MCU.
REDUNDANT CONTROL UNIT FOR A MOTOR VEHICLE STEERING SYSTEM
A motor vehicle steering system may include an electric motor and a control unit that controls the electric motor. The control unit may have at least two redundant control paths for controlling the electric motor and an asymmetry detection device. The asymmetry detection device may be configured to compare electric current intensities of the at least two redundant control paths and to cause a faulty control path to be interrupted when there is asymmetry. Each of the at least two redundant control paths may include a switching element that is connected to the asymmetry detection device for interrupting the respective redundant control path.
Control device for vehicle-mounted equipment
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.
A METHOD AND SYSTEM ARRANGEMENT FOR VEHICLE STEERING AND VEHICLE WITH SUCH A SYSTEM
The present invention relates to vehicle steering system arrangement (100) comprising a vehicle suspension allowing wheels to be steered and power assisted vehicle steering with a feedback torque actuator (130), the steering feel being controlled by means of a torque and/or angle control system, TAC, (132). The vehicle suspension with steerable wheels comprises a plurality of vehicle suspension parameters and the geometry and/or dimensions of one or more of the vehicle suspension parameters or elements is/are designed to reduce or minimize the steering force required for steering the vehicle in driving. The torque and/or angle control, TAC, (132) is used for, based at least on directly or indirectly sensed and/or calculated steering wheel angle, controlling the wheel steer angle and providing feedback control by controlling the feedback torque actuator to generate a target feedback torque, and a target steering feel, and hence reducing or eliminating driver feedback provided by the vehicle suspension, such that the steering effort, if there is a fault in the steering control so that the assistance is lost, will be low enough for the driver to handle safely, hence without needing fail-operational steering gear.
STEERING POWER ASSISTANCE SYSTEM AND ELECTRONIC CONTROL DEVICE
The present disclosure relates to a steering power assistance system and an electronic control device included therein. Specifically, a steering power assistance system according to the present disclosure comprises: two sensors including a dual die integrated circuit; two controllers connected to the two sensors, respectively, and capable of performing internal communication; and a steering motor, wherein among the two controllers, one controller in the following turn in the sequence of controlling generates a control signal and outputs the control signal to the steering motor, according to a target value calculated by another controller which is in a normal state and in the preceding turn in the sequence of controlling.
FUNCTIONAL LIMITS FOR TORQUE REQUEST BASED ON NEURAL NETWORK COMPUTING
A method for calculating at least one functional limit for a requested assist torque in a steering system. The method includes receiving at least one input and communicating the at least one input to an artificial neural network, wherein the artificial neural network is configured to calculate an assist torque limit corresponding to the requested assist torque. The method also includes receiving, from the artificial neural network, the assist torque limit corresponding to the requested assist torque and controlling at least one aspect of the steering system using the requested assist torque and the assist torque limit.
MOTOR DRIVE SYSTEM
A motor drive system includes a first actuator and a second actuator each functioning as a motor configured to output torque. Each of the first actuator and the second actuator includes a plurality of control calculation units and a plurality of motor drive units. The plurality of control calculation units are provided redundantly and each configured to perform a calculation related to a motor drive control. The plurality of motor drive units are provided redundantly and each configured to drive based on a drive signal generated by a corresponding control calculation unit and output the torque.
MOTOR CONTROL DEVICE AND METHOD
The embodiments of the present disclosure relate to a motor control device and method, more particularly, a motor control device and method capable of improving an uncomfortable feeling in motor control by minimizing the control stop time by classifying the operation in the transition period of a control right to another motor control device according to a failure type, in the case of a failure of the motor control device having the control right in the motor control system of the redundancy structure.
Method for Monitoring a Steering Device
A method for monitoring a steering device including a steering gear, a first steering actuator, a second steering actuator, a first traction mechanism drive with a first traction mechanism configured to connect the first steering actuator to the steering gear, and a second traction mechanism drive with at least one second traction mechanism configured to connect the second steering actuator to the steering gear, includes determining at least one first position parameter of the first steering actuator, and at least one second position parameter of the second steering actuator. The method includes evaluating the first position parameter and the second position parameter to determine that an unintentional change in position of at least one of the first traction mechanism and the second traction mechanism has occurred, and definitely associating the unintentional change in position with one of the first and second traction mechanism drives.