B62D5/0493

APPARATUS FOR AND METHOD OF COMPENSATING FOR STEERING ERROR IN ADVANCED DRIVING ASSISTANCE SYSTEM
20210094611 · 2021-04-01 ·

Disclosed are an apparatus for and a method of compensating for a steering error in an advanced driving assistance system, and the apparatus includes a command steering angle correction module that corrects a command steering angle according to whether or not the command steering angle input from the advanced driving assistance system satisfies a preset error compensation condition; and a motor control unit that controls a motor of a motor-driven power steering system according to the command steering angle corrected by the command steering angle correction module.

Electric power steering system

An electric power assisted steering apparatus comprises an upper column shaft that is connected to a steering wheel of the vehicle; and a lower column shaft. A torsion bar interconnects the upper column shaft and the lower column shaft; and an electric motor is connected to the lower column shaft of the torque sensor assembly. A first sensor circuit generates a first torque signal based on angular deflection of the torsion bar, and a second sensor circuit generating a second torque signal based on angular deflection of the torsion bar, the apparatus further including: an error determining circuit which produces two error signals, each indicative of the validity of a respective torque signal, and a torque plausibility estimator which generates two plausibility signals each indicative of the plausibility of a respective one of the two torque signals.

Steering Device
20210086827 · 2021-03-25 ·

The disclosure relates to a steering device, more particularly to the provision of electrical steering assistance, having at least one main control unit, which is provided to control, in at least one normal operating state, operation of at least one electric motor, and having at least one auxiliary control unit, which is provided to control, in at least one faulty operating state in which a fault in and/or failure of the main control unit has occurred, operation of the electric motor. According to the disclosure, the main control unit can be operated independently of the auxiliary control unit and the auxiliary control unit is set in the normal operating state to a passive operating mode.

Sensor device

The present invention includes: first to fourth Hall elements for detecting steering torque; a first power supply circuit for supplying power to the first and second Hall elements; a second power supply circuit for supplying power to the second and third Hall elements; and a control device including a first abnormality determining unit for determining whether first and fourth torque signals are abnormal by preparing the first torque signal output from the first Hall element with the fourth torque signal output from the fourth Hall element and a second abnormality determining unit for determining whether second and third torque signals are abnormal by comparing the second torque signal output from the second Hall element with the third torque signal output from the third Hall element. With this, even when abnormality occurs in one of the first and second power supply circuits, the abnormality determination of an output signal can be continued.

STEERING MOTOR BRAKE

This disclosure describes a method for shorting one or more windings in a steering motor. The method determines that a signal has not been received at a circuit from a processor. The method discharges a first capacitor in the circuit in response to the circuit not receiving the signal from the processor. The method turns on a first plurality of transistors via a resistor in response to discharging the first capacitor. The method turns on a second plurality of transistors in response to turning on the first plurality of transistors. The method sends a short circuit signal from the second plurality of transistors to a steering motor.

Steering system monitoring
11851118 · 2023-12-26 · ·

The disclosure relates to a method including the steps of: acquiring a time sequence of sets of vehicle parameter values; determining, for each set of acquired vehicle parameter values, based the set of acquired vehicle parameter values, a measure indicative of an observed strain in a steering rod, between a steering actuator and a wheel; determining, for each set of acquired vehicle parameter values, a measure indicative of a predicted strain in the rod, between the steering actuator and the wheel; and determining the functional status of the steering system based on a relation between the measures indicative of the observed strain in the rod and the measures indicative of the predicted strain in the rod.

Electric steering control apparatus and control method thereof
11851116 · 2023-12-26 · ·

An electronic steering control apparatus to which a redundancy system is applied and which includes a first position controller and a second position controller. When communication is established between the first and second position controllers, the first position controller controls the position of a first motor based on command steering angles .sub.1 and .sub.2 from a control unit and feedback steering angles .sub.m1 and .sub.m2 from the first motor and a second motor, and the second position controller controls the position of the second motor based on the command steering angles .sub.1 and .sub.2 from the control unit and the feedback steering angles .sub.m1 and .sub.m2 from the first motor and the second motor.

SYSTEM AND METHOD FOR CALIBRATING A STEERING WHEEL NEUTRAL POSITION
20210031831 · 2021-02-04 ·

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.

Steering motor brake

This disclosure describes a method for shorting one or more windings in a steering motor. The method determines that a signal has not been received at a circuit from a processor. The method discharges a first capacitor in the circuit in response to the circuit not receiving the signal from the processor. The method turns on a first plurality of transistors via a resistor in response to discharging the first capacitor. The method turns on a second plurality of transistors in response to turning on the first plurality of transistors. The method sends a short circuit signal from the second plurality of transistors to a steering motor.

CONTROL DEVICE, STEERING DEVICE, CONTROL METHOD, AND RECORDING MEDIUM
20210016825 · 2021-01-21 · ·

A control device of a steering device, for a vehicle, which includes left and right steering mechanisms not mechanically coupled to each other, and which steers left and right steered wheels individually by driving force of steering actuators, includes: a steered angle determining unit that determines a target steered angle for each of the left and right steering mechanisms; and a steering command unit that generates drive signals corresponding to the target steered angles, and outputs the drive signals to each of the actuators. When an anomaly occurs in one of the left and right steering mechanisms, the steered angle determining unit sets the target steered angle for the steering mechanisms that is normal to be different from the target steered angle when both the left and right steering mechanisms are normal.