An apparatus for controlling a vehicle having a motor is provided and includes a driving information sensor that senses driving information of the vehicle including an open value of an APS, an open value of a BPS, a driving wheel speed, a non-driving wheel speed, external temperature, battery temperature, a vehicle speed, and a shift stage. A driving motor generates a driving force and is operated as a power generator when the vehicle coasts to generate electric energy. An ABS that adjusts a braking force applied to a driving wheel. A controller changes a coast regeneration torque subject to regenerative braking by the driving motor when the vehicle is coasting, based on a difference between a driving wheel speed and a non-driving wheel speed, correction temperature determined based on the external temperature and the battery temperature, a friction coefficient of a road, and an operation condition of the ABS.

A wheelie determining device comprises a wheelie preceding state determiner section which makes a comparison between a vehicle body speed with respect to a ground surface and a circumferential speed of a front wheel to determine whether or not a vehicle is in a wheelie preceding state; and a wheelie amount determiner section which calculates as a wheelie amount which is a lift-off amount of the front wheel with respect to the ground surface, an angular change amount of the vehicle body in a rotational direction in which the front wheel is away from the ground surface, from a time point when the wheelie preceding state determiner section has determined that the vehicle has been in the wheelie preceding state.

A method for preventing damage to a driving system in vehicles may include determining whether a 4-wheel drive vehicle turns based on a steering angle signal, determining, based on an accelerator opening rate signal of the vehicle, whether a maximum torque causing damage to front wheel driveshafts is produced, checking a bump stroke amount of the vehicle and determining whether the front wheel driveshafts are likely to be damaged by a maximum torque transferred to the front wheel driveshafts when the vehicle turns, and lowering, when the front wheel driveshafts are likely to be damaged, a maximum torque of a 4-wheel drive torque applied to the front wheel driveshafts.

The invention relates to switching between 2WD and 4WD of a vehicle. It is suggested to increase output power of an engine (106) when changing to 4WD. An AWD coupling (120) is opened, if not already open. To provide 4WD, a PTU clutch (108) is engaged once engine power has increased. The other couplers are sequentially engaged.

In a method for controlling a traction system for a heavy road vehicle, the system includes a first mechanical propulsion system, a second hydraulic propulsion system, and a control unit. The method includes measuring a first parameter value, indicative of the rolling radius of a first traction wheel, measuring a second parameter value, indicative of the rolling radius of a second traction wheel, and the control unit using the first and second parameter values for determining a present relation between the rolling radii of the first and second traction wheels. The control unit provides an output signal based on the present relation to optimize the traction applied to the second traction wheel. A traction system and a heavy vehicle incorporating a traction system are also provided.

In a control device for a limited slip differential that limits a differential operation of front and rear wheels of a four-wheel-drive vehicle having mounted thereon a vehicle behavior control device that controls a braking force, an ECU that controls a torque coupling as the limited slip differential includes: a differential limiting force calculating device that calculates target torque of the torque coupling based on a vehicle traveling state; a differential limiting force correcting device that makes a correction to reduce the target torque based on a command from the vehicle behavior control device; and a thermal load calculating device that calculates a thermal load of the torque coupling. The differential limiting force correcting device limits the correction of the target torque based on the command from the vehicle behavior control device, when the thermal load of the torque coupling is equal to or larger than a predetermined value.

An apparatus for controlling a vehicle having a motor is provided and includes a driving information sensor that senses driving information of the vehicle including an open value of an APS, an open value of a BPS, a driving wheel speed, a non-driving wheel speed, external temperature, battery temperature, a vehicle speed, and a shift stage. A driving motor generates a driving force and is operated as a power generator when the vehicle coasts to generate electric energy. An ABS that adjusts a braking force applied to a driving wheel. A controller changes a coast regeneration torque subject to regenerative braking by the driving motor when the vehicle is coasting, based on a difference between a driving wheel speed and a non-driving wheel speed, correction temperature determined based on the external temperature and the battery temperature, a friction coefficient of a road, and an operation condition of the ABS.

A vehicle power control system includes a driving force control unit configured to limit a driving force during acceleration of a vehicle when the vehicle is in a predetermined power control driving state. The driving force control unit includes a notification unit configured to tactilely notify a driver via a throttle manipulator that a driving force limit state occurs during the acceleration of the vehicle.

According to the method of estimating a maximum road friction coefficient, artificial braking or driving-related control is conducted and a maximum road friction coefficient is estimated based on a difference in wheel speeds between front and rear wheels, compensated for slip of tires.

Aspects of the present invention relate to a method and to a control system for a vehicle, the vehicle comprising an internal combustion engine configured to provide torque to a first axle of the vehicle for generating first axle wheel torque, and an electric machine configured to provide torque to a second axle of the vehicle for generating second axle wheel torque, the method comprising: outputting a torque request for the engine and a torque request for the electric machine, the torque requests having a first ratio dependent on a required torque split between the first axle wheel torque and the second axle wheel torque, wherein received first axle wheel torque and received second axle wheel torque have a second variable ratio dependent on a difference between wheel torque response capabilities of the engine and of the electric machine; determining that a trigger condition is satisfied; and controlling, in dependence on satisfaction of the trigger condition, determination of the torque request for the electric machine such that deviation of the second ratio from the first ratio is inhibited.