Methods and systems are provided for operating a driveline of a hybrid vehicle that includes an internal combustion engine, an electric machine, and a transmission are described. In one example, regenerative torque and torque of an electronically controlled differential clutch are adjusted to increase utilization of a vehicle's kinetic energy.

Method for updating at least one vehicle model parameter and at least one tire parameter in at least one chassis control unit of a vehicle, based on tire sensor information collected by a tire sensor placed on a tire. The method includes the steps of: collecting tire sensor information; updating the at least one vehicle model parameter based on updating at least one tire parameter, updating one tire parameter being based on the tire sensor information.

The present application generally relates to a method and apparatus for application of a park hold assist system in a motor vehicle. In particular, the system is operative to receive an activation signal and to determine that the vehicle is in a park hold assist condition, such as inclined road surface, attached trailer or wheel rotation while transmission is in the park position. The system is operative to apply the hydraulic brakes in response to this condition thereby engaging a brake mechanism on all wheels.

Method and apparatus are disclosed for a traction and stability control system. An example vehicle includes wheel speed sensors on wheels of the vehicle and a traction control module. The example traction control module determines, based on measurements of the wheel speed sensors or a transmission control module, whether the vehicle is likely stuck. Additionally, when the vehicle is likely stuck and an indication to disable the a traction control system has been received, the example traction control module disables the traction control system.

A regenerative braking control apparatus of a vehicle may include: a drive motor; a battery for providing driving voltage to the drive motor; a data detector for detecting a driving state information of the vehicle; and a vehicle controller generating a total braking amount based on the driving state information. In particular, the vehicle controller generates a regenerative braking possible amount by using a generatable power of the drive motor and a chargeable power of the battery, performs a regenerative braking when the regenerative braking possible amount is greater than the total braking amount, and also prepares a hydraulic pressure braking based on the regenerative braking possible amount and a regenerative braking amount based on the regenerative braking.

Provided is a vehicle control apparatus and vehicle control method. The vehicle control apparatus and vehicle control method includes a sensing unit configured to sense at least one of a vehicle speed value and a wheel speed value, a transmission information output device configured to output transmission information, and a control unit configured to determine whether a vehicle having been in a stationary state is moving using the sensed at least one of the vehicle speed value and the wheel speed value, determine whether the output transmission information corresponds to a neutral state when the vehicle having been in a stationary state is moving, and transmit an electrical parking brake (EPB) engagement command to an EPB device such that EPB automatic engagement is performed by the EPB device when the transmission information corresponds to a neutral state.

A method for brake control of a vehicle combination (1) having a tractor vehicle (2) and a trailer vehicle (3) with an electrically controllable trailer control valve (9) changes an assigned trailer control valve characteristic curve (p_normal) stored in an electronic controller (6) for normal operation of the vehicle combination (1) or replaces it with a trailer control valve characteristic curve for special operation (p_special) in the event that a special operation of the vehicle combination (1) is detected or predicted, which special operation, under consideration of relevant parameters, differs from the normal operation or is evaluated as being potentially impermissible.

A vehicle includes a powertrain, an electric machine, a battery, and a controller. The powertrain is configured to transfer motive power to the electric machine to charge the battery during regenerative braking. The controller programmed to, in response to a decreasing demanded powertrain output torque, adjust a regenerative braking torque limit based on an anti-jerk torque schedule, generate an actual regenerative braking torque based on system constraints, and limit the actual regenerative braking torque to the regenerative braking torque limit.

A method of preventing an automatic transmission vehicle from rolling downward on a hill is provided. The method includes determining whether the vehicle travels normally or abnormally on the hill based on a gradient measured by a G sensor and a direction of a wheel measured by a wheel sensor. A controller is maintained in an off state when the vehicle travels normally based on driver intention. The method further includes determining whether to operate the controller by determining a difference in wheel speed between a front wheel and a rear wheel of the vehicle when the vehicle travels abnormally as the vehicle rolls downward.

A dual mass flywheel protection system includes an engine coupled to a transmission using a dual mass flywheel defining a drive train. A gear determiner identifies a present operational gear. A filtered engine speed is available. A torque reduction module applies the present operational gear and filtered engine speed producing signals limiting an engine torque to reduce engine torque variations. A first torque limitation option limits engine torque when the drivetrain is coupled, dependent on an engine rpm, which is related to an actual gear selected. A second torque limitation option determines an engine torque reduction during an emergency braking maneuver while an anti-lock brake (ABS) system is active. An engine shut-off module produces an output signal shutting off the engine upon initiation of one of multiple engine shut-off module outputs, and is active when an engine torque limitation due to a low engine rpm is not present.