When the drive torque of the electric motor (3) is reduced to the minimum motor torque (TMIN), the drive torque is increased by an increment (α) for every calculation period until reaching the grip limit torque (TLIM).

When the skid tendency of the rear wheels (1RL, 1RR) is detected, the drive torque of an electric motor (3) is reduced to a minimum motor torque (TMIN).

The drive torque goes nonstop to the gear box.

Th invention relates to control of an internal combustio engine (109), especially when used in a series hybrid vehicle, with a motor (107) delivering drive torque to the wheels.

The inner state such as defective lubrication or liquid back is inferred from the motor drive torque measured as a parameter of a motor model.

Controlling the engine torque in an intervention mode comprises controlling at least one of cycling the engine torque, and limiting the engine torque.

The dynamic demand engine torque converted from the static demand engine torque is accommodated in relation to the dynamic demand engine torque set in another system.

In order to limit the resulting set torque a minimum engine torque is provided, derived from the lost torques and which is dependent on the engine speed.

Static demand engine torque is converted into dynamic demand engine torque.

The engine (1) is responsive to an engine torque demand and is operable over a range of engine speeds (33, 37, 38) to provide an engine torque output in response to the engine torque demand.

A machine (100) includes an engine (104) providing an engine torque (402).

The invention concerns a method for controlling a synchronous motor characterised by its torque constant ki, for supplying an engine torque Tmot based on the motor speed (n) and the desired torque (Tref).

The maximum available reduced engine torque below the peak torque speed of the engine before imposition of the torque reduction shall not exceed the reduced torque at that speed.

Meanwhile, the control apparatus increases the engine torque command value STE in steps and increases the engine torque TE quickly.

When the engine torque TE exceeds a limit value TCG of the engaging torque, the control apparatus increases the engaging torque command value STC in response to that engine torque TE.

At low speed, the electric motor (2) has a driving torque higher than the thermal engine's (1) load moment.

The engine has a long power displacement and a large driving torque.

Thus a spinning drive axle can be automatically detected and under a temporary reduction of the driving torque said drive axle can be acted upon again applying a driving torque identical to that of the rest of the drive axles (2).

Thereafter, the driving torque of the internal combustion engine can be increased as desired.

The invention relates to a method and equipment for continuously producing driving torque using the energy of Earth's gravitational field that comprises four driving-torque generation circuits in carousel equipment.

A known relationship between motor phase current and motor torque is then employed by a torque controller so that motor shaft torque can be controlled.

significant reduction of propulsion torque means a propulsion torque less than or equal to 90 % of torque in normal operation mode

The power outputting device detects the state of a motor, and calculates motor-torque or motor-output that can be outputted from the motor, and the maximum torque of the motor.

According to the invention, a differential torque (MK(Diff) is calculated from the current motor torque (MK) and a maximum permissible motor torque (MK(Max).

The output torque of the first motor generator (MG1) is controlled according to the sum of the motoring torque and a portion of the vibration restraining torque.