Provided is a vehicle control device configured to: generate a target trajectory of a vehicle; and determine whether change in speed of a target steering angle in a first period is equal to or larger than a first threshold value and whether change in speed of the target steering angle in a second period is equal to or larger than a second threshold value; and change, in a case where the driving mode of the vehicle is a second driving mode, the driving mode of the vehicle to a first driving mode when the change in speed of the target steering angle in the first period is determined to be equal to or larger than the first threshold value or when the change in speed of the target steering angle in the second period is determined to be equal to or larger than the second threshold value.

A method detects unintended acceleration of a motor vehicle during a closed-loop speed control mode by determining external forces on the vehicle via a controller, and then calculating a desired acceleration using a measured vehicle speed and the external forces. The method includes determining an actual acceleration of the vehicle, including filtering a speed signal as a first actual acceleration value and/or measuring a second actual acceleration value using an inertial measurement unit (IMU). During the speed control mode, the method includes calculating an acceleration delta value as a difference between the desired acceleration and the actual acceleration, and then using the acceleration delta value to detect the unintended acceleration during the speed control mode. A powertrain system for the motor vehicle, e.g., an electric vehicle, includes the controller and one or more torque generating devices coupled to road wheels of the vehicle.

A method of controlling a differential lock. The differential lock is actuated to lock a differential assembly when wheel slip of a first wheel assembly is detected and a duration of the wheel slip exceeds a pre-activation buffer. The pre-activation buffer is based on acceleration of the first wheel assembly and vehicle speed.

Provided is a vehicle control device configured to: generate a target trajectory of a vehicle; and determine whether change in speed of a target steering angle in a first period is equal to or larger than a first threshold value and whether change in speed of the target steering angle in a second period is equal to or larger than a second threshold value; and change, in a case where the driving mode of the vehicle is a second driving mode, the driving mode of the vehicle to a first driving mode when the change in speed of the target steering angle in the first period is determined to be equal to or larger than the first threshold value or when the change in speed of the target steering angle in the second period is determined to be equal to or larger than the second threshold value.

A method detects unintended acceleration of a motor vehicle during a closed-loop speed control mode by determining external forces on the vehicle via a controller, and then calculating a desired acceleration using a measured vehicle speed and the external forces. The method includes determining an actual acceleration of the vehicle, including filtering a speed signal as a first actual acceleration value and/or measuring a second actual acceleration value using an inertial measurement unit (IMU). During the speed control mode, the method includes calculating an acceleration delta value as a difference between the desired acceleration and the actual acceleration, and then using the acceleration delta value to detect the unintended acceleration during the speed control mode. A powertrain system for the motor vehicle, e.g., an electric vehicle, includes the controller and one or more torque generating devices coupled to road wheels of the vehicle.

A vehicle control device includes sensors that detect pulse signals corresponding to rotation of front wheels and of rear wheels of a vehicle, and a controller that increases a count at a rise and a fall of the pulse signals. The controller estimates a road surface friction coefficient based on a time rate of change of a difference between a value counted up using the front wheels and a value counted up using the rear wheels.

A vehicle control device includes sensors that detect pulse signals corresponding to rotation of front wheels and of rear wheels of a vehicle, and a controller that increases a count at a rise and a fall of the pulse signals. The controller estimates a road surface friction coefficient based on a time rate of change of a difference between a value counted up using the front wheels and a value counted up using the rear wheels.

A damping control device for an electric vehicle is having a continuously variable transmission between a motor and left and right front wheels. The damping control device drive system includes a feedback control unit, which suppresses a vibration accompanying a disturbance in the rotational speed of the motor, and an operation determination unit, which determines whether or not an absolute value of a second-order differential of the transmission ratio is equal to, or greater than, a predetermined value, wherein when the absolute value of the second-order differential of the transmission ratio is equal to, or greater than, the predetermined value. The feedback control unit performs control of the output torque of the motor whereby a compensation torque component for suppressing a vibration accompanying a gear shift is subtracted from a compensation torque.

A damping control device for a hybrid vehicle is provided that make it possible to suppress behavior that differs from a request of a driver. The damping control device includes a controller that calculates an amount of change in a target driving torque, and calculates an amount of change in a target motor torque. The damping control device also includes a damping rate variation unit that sets the damping of a feed forward control unit to a first damping rate when the target driving torque change amount and the target motor torque change amount both are positive or negative, and to a second damping rate, which is smaller than the first damping rate, when the target driving torque change amount and the target motor torque change amount have opposite positivity or negativity.

A control apparatus for a hybrid vehicle includes: a first controller configured to perform first control of causing a rotation speed of an engine to approach a target rotation speed; and a second controller disposed separately from the first controller and configured to perform second control of reducing vibration due to fluctuation of the rotation speed of the engine by controlling a torque which is output from an electric motor connected to the engine. The second controller is configured to control the electric motor such that a torque associated with the second control is not output in a first frequency area which is a control frequency range of a transfer function of the first controller and to control the electric motor such that the torque associated with the second control is output in a second frequency area of a transfer function of the second controller which is higher than the first frequency area.