Disclosed herein is a vehicle control apparatus and a vehicle control method. The vehicle control apparatus includes a first sensor configured to detect an object; a second sensor configured to detect driver steering input information; an Autonomous Emergency Steering Assist (AESA) device configured to perform automatic emergency steering assist; a Driver-initiated Emergency Steering Assist (DESA) device configured to perform emergency steering assistance based on the driver steering input information; and a controller configured to control the AESA device to apply a steering assist control torque value corresponding to the AESA device differently for each of collision risk levels in a collision risk situation with the detected object, and when there is the detected driver steering input information, to control the DESA device to apply a steering assist control torque value corresponding to the DESA device according to the driver steering input information.

Disclosed herein is a vehicle control apparatus and a vehicle control method. The vehicle control apparatus includes a first sensor configured to detect an object; a second sensor configured to detect driver steering input information; an Autonomous Emergency Steering Assist (AESA) device configured to perform automatic emergency steering assist; a Driver-initiated Emergency Steering Assist (DESA) device configured to perform emergency steering assistance based on the driver steering input information; and a controller configured to control the AESA device to apply a steering assist control torque value corresponding to the AESA device differently for each of collision risk levels in a collision risk situation with the detected object, and when there is the detected driver steering input information, to control the DESA device to apply a steering assist control torque value corresponding to the DESA device according to the driver steering input information.

A method for hands-on identification on a steering system having two subsystems connected to one another by an elastic connection. The elastic connection has a static friction state and a sliding friction state for a respective set of external state variables. The steering system is excited by an excitation vibration, which is generated by a controllable vibration generator and has a respective excitation amplitude and a respective excitation frequency, for a respective set of external state variables, in which the respective excitation amplitude and the respective excitation frequency for the currently present set of external state variables are taken from a prescribed table and the vibration generator is controlled with them. A reaction torque to the excitation vibration is measured using a sensor. A phase difference between the excitation vibration and the reaction torque is calculated to identify a hands-off state as well as a hands-on state.

A method for hands-on identification on a steering system having two subsystems connected to one another by an elastic connection. The elastic connection has a static friction state and a sliding friction state for a respective set of external state variables. The steering system is excited by an excitation vibration, which is generated by a controllable vibration generator and has a respective excitation amplitude and a respective excitation frequency, for a respective set of external state variables, in which the respective excitation amplitude and the respective excitation frequency for the currently present set of external state variables are taken from a prescribed table and the vibration generator is controlled with them. A reaction torque to the excitation vibration is measured using a sensor. A phase difference between the excitation vibration and the reaction torque is calculated to identify a hands-off state as well as a hands-on state.

This steering control device is provided with a microcomputer. The microcomputer includes: a basic assist component calculation unit for calculating a basic assist component; an angle command value calculation unit for calculating an angle command value; an angle feedback control unit that calculates an assist command value via angle feedback control in which a pinion angle is made to follow the angle command value; and a control signal generation unit that generates a motor control signal on the basis of the assist command value. The basic assist component calculation unit includes: a torque command value calculation unit for calculating a torque command value that is a target value for steering torque to be input by a driver; and a torque feedback control unit that calculates the basic assist component via torque feedback control in which the steering torque is made to follow the torque command value.

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.

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.

Systems and methods for a control system for controlling a machine including a first controller to generate a first control command according to an objective of control. A second controller to generate a control input as a combination of a second control command and a third control command. Wherein the second controller generates the second control command according to the objective of control, and generates the third control command using a product of a gain with a difference between the first control command and the second control command. A motor to control the machine according to the control input.

Systems and methods for a control system for controlling a machine including a first controller to generate a first control command according to an objective of control. A second controller to generate a control input as a combination of a second control command and a third control command. Wherein the second controller generates the second control command according to the objective of control, and generates the third control command using a product of a gain with a difference between the first control command and the second control command. A motor to control the machine according to the control input.

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.