B62D6/08

Operator action positioning module for lane assistance function

A blending steering control method includes estimating a handwheel pressure applied by an operator to a handwheel and receiving a handwheel torque input indicating a torque value applied by the operator to the handwheel. The method also includes receiving a target handwheel angle indicating a target handwheel angle of an electronic power steering system configured to control a corresponding vehicle along a defined path. The method also includes generating a scaled operator intent value based on the estimated handwheel pressure and the handwheel torque and generating an output torque value based on the target handwheel angle and scaled operator intent value. The method also includes selectively controlling vehicle trajectory based on the output torque value.

APPARATUS FOR AND METHOD OF CONTROLLING STEER-BY-WIRE STEERING SYSTEM
20230019056 · 2023-01-19 · ·

Proposed is an apparatus for controlling a steer-by-wire steering system, the apparatus comprising: a steering angle sensor configured to detect a steering angle position; a steering position control command receiver configured to receive a steering position control command y2 from a designated external module; a processor configured to generate a steering angle position signal y1 based on the steering angle position from the steering angle sensor, compute a compensation gain x corresponding to column torque or motor electric current of a steering force actuator (SFA) when a driver's involvement occurs, compute a final steering position control command Y by reflecting the compensation gain x to the steering angle position signal y1 and the steering position control command y2, and output the final steering position control command Y to the steering force actuator (SFA).

APPARATUS FOR AND METHOD OF CONTROLLING STEER-BY-WIRE STEERING SYSTEM
20230019056 · 2023-01-19 · ·

Proposed is an apparatus for controlling a steer-by-wire steering system, the apparatus comprising: a steering angle sensor configured to detect a steering angle position; a steering position control command receiver configured to receive a steering position control command y2 from a designated external module; a processor configured to generate a steering angle position signal y1 based on the steering angle position from the steering angle sensor, compute a compensation gain x corresponding to column torque or motor electric current of a steering force actuator (SFA) when a driver's involvement occurs, compute a final steering position control command Y by reflecting the compensation gain x to the steering angle position signal y1 and the steering position control command y2, and output the final steering position control command Y to the steering force actuator (SFA).

Electric truck steering with varying pump speed
11524716 · 2022-12-13 · ·

The present technology describes systems and methods for varying a pump speed of an electric truck. In examples, vehicle efficiency losses may be reduced by varying the speed of a hydraulic pump associated with a power steering gear. An electronic control unit (ECU) may receive a set of steering information from a torque overlay system (TOS). Based on the set of steering information, a power may be provided to a variable pump motor. The power provided to the variable pump motor may correspond with a speed of a hydraulic pump associated with a power steering gear of the vehicle. As new or additional steering information is received from the TOS, the ECU may adjust the power provided to the variable pump motor.

Electric truck steering with varying pump speed
11524716 · 2022-12-13 · ·

The present technology describes systems and methods for varying a pump speed of an electric truck. In examples, vehicle efficiency losses may be reduced by varying the speed of a hydraulic pump associated with a power steering gear. An electronic control unit (ECU) may receive a set of steering information from a torque overlay system (TOS). Based on the set of steering information, a power may be provided to a variable pump motor. The power provided to the variable pump motor may correspond with a speed of a hydraulic pump associated with a power steering gear of the vehicle. As new or additional steering information is received from the TOS, the ECU may adjust the power provided to the variable pump motor.

Method and apparatus for automated lateral controls adaptation in response to rapid trajectory changes

The present application generally relates to a method and apparatus for controlling an autonomous vehicle. In particular, the method and apparatus are operative for detecting, by a sensor, an object within a first vehicle path, generating, by a processor, a second vehicle path in response to either the detection of the object such that the second vehicle path avoids the object, or a user initiated trajectory shift, generating, by the processor, an initial steering torque in response to the second vehicle path, performing, by the processor, an adaptation on the initial steering torque to generate an adapted steering torque in response to the initial steering torque exceeding a torque rate limit, and controlling, by a vehicle controller a host vehicle steering system to follow the second vehicle signal path in response to the adapted steering torque.

Method and apparatus for automated lateral controls adaptation in response to rapid trajectory changes

The present application generally relates to a method and apparatus for controlling an autonomous vehicle. In particular, the method and apparatus are operative for detecting, by a sensor, an object within a first vehicle path, generating, by a processor, a second vehicle path in response to either the detection of the object such that the second vehicle path avoids the object, or a user initiated trajectory shift, generating, by the processor, an initial steering torque in response to the second vehicle path, performing, by the processor, an adaptation on the initial steering torque to generate an adapted steering torque in response to the initial steering torque exceeding a torque rate limit, and controlling, by a vehicle controller a host vehicle steering system to follow the second vehicle signal path in response to the adapted steering torque.

Steering system having different operation modes

A steering system of a vehicle, including an operation member to be operated by a driver, a steering device configured to steer a wheel, and a controller configured to control the steering system, wherein the controller is configured to parallelly execute a main process including a process in which the controller controls the steering device to perform steering of the wheel in accordance with an operation of the operation member and an auxiliary process relating to an operation of the steering system and configured to decrease an execution ratio of the main process and increase an execution ratio of the auxiliary process when a condition that a running speed of the vehicle is not lower than a threshold speed is satisfied.

Steering system having different operation modes

A steering system of a vehicle, including an operation member to be operated by a driver, a steering device configured to steer a wheel, and a controller configured to control the steering system, wherein the controller is configured to parallelly execute a main process including a process in which the controller controls the steering device to perform steering of the wheel in accordance with an operation of the operation member and an auxiliary process relating to an operation of the steering system and configured to decrease an execution ratio of the main process and increase an execution ratio of the auxiliary process when a condition that a running speed of the vehicle is not lower than a threshold speed is satisfied.

Steering control device

A driving assistance control device outputs a driving assistance command value to a steering control device as information indicating a target course that is generated on the basis of the detection result of a vehicle-mounted sensor. The driving assistance command value is output as a torque component or an angle component depending on the design of the driving assistance control device. In response, processing in which a driving assistance command value input from the exterior of the steering control device is used as input for angle control processing or input for torque control processing within an assist command value calculation unit is performed by a microcomputer as assistance command value input processing by an assistance command value input processing unit.