Smh Management Services Ag

Rene Jeanneret

Jacques Muller

Antoine Toth

Thomas Edye

Robert Apter

Gianni Francescutto

Patrick Theurillat

The invention concerns a driving system for a hybrid-powered motor vehicle. It includes a generator set producing a direct current used by a driving set with an electric motor for driving at least one driving wheel of the vehicle. Using an accelerator, the driver gives a power set-point signal that is used by a first adjusting device which acts on the thermal engine, the generator, and the AC/DC converter of the generator set. A second adjusting device adjusts the power of the driving set as a slave of the generator set, according to the variations in the voltage of the supply circuit with respect to a desired voltage, without considering the signal from the accelerator.

Driving system for hybrid-powered motor vehicle and control method for

The vehicle comprises an electric drive motor, a generator driven by a gasoline engine and a regulating circuit which regulates the speed of rotation of the gasoline engine and the electric power supplied to the electric motor as a function of the position of an accelerator pedal and which is arranged so that this electric power increases at the same time as the speed of rotation of the gasoline engine when the pedal is actuated to increase the speed of the vehicle. This feature removes the delay which, in known vehicles of the same type, separates the actuation of the accelerator pedal from the increase in the electric power supplied to the drive motor.

Hybrid vehicle

Electric traction motor vehicle

A vehicle (31) has a composite braking system (electric and mechanical). This composite braking system having asynchronous electric motors (4a to 4d) associated with the wheels (2a to 2d) and a mechanical braking device having a hydraulic circuit (14) and mechanical brakes (18a to 18d). The composite braking system also has an electronic measuring device (36) connected to rotation frequency sensors (34a to 34d) disposed on each of the wheels, this electronic device supplying a reference signal to the control circuit (6) of the asynchronous electric motors which regulate the stator frequency of these motors as a function of the value of the reference signal. The braking system of the invention is anti-locking and very effective in any driving situation.

Vehicle having an electric and mechanical braking system

The invention concerns a motor system of an electric type vehicle, comprising at least two asynchronous electric motors (M1, M2) supplied in parallel by a central electric supply. This central electric supply is controlled by a control device supplying thereto a first control signal (SCF) determining the value of the supply frequency (FAL) and a second control signal (SCA) determining the value of the supply amplitude (UAL) of the supply voltage. These first and second control signals are regulated essentially in dependence upon a signal (SMI) which is a measurement of the principal supply current (IAL), an instruction signal (SCS) and a signal (SFMX) representing the maximum value of the rotational frequency of the rotors (R2, R2) of said motors.

Motor system for an electric type vehicle

A charging apparatus comprising discrete charging circuits each for connection to a different group of cells of an accumulator having multiple groups of cells. Each discrete charging circuit comprises a separate transformer the primary winding of which is connected to a source of an a.c. voltage common to all discrete charging circuits. The secondary winding of each transformer is connected to the input of a rectifier whose output is connected to charging terminals for connection to group terminals of a corresponding group of cells. This arrangement enables the accumulator to be completely charged while substantially reducing the risk of damaging the cell or cells of lowermost maximum capacity.

Apparatus with discrete circuits for charging electrical accumulator

A control device for an asynchronous motor (2), notably intended for the drive system of an electric vehicle, comprises electric supply source (10) able to produce an AC supply voltage whose frequency (FAL) and amplitude (UAL) may be adjusted independently of one another. For a given frequency of the supply voltage, the amplitude of the voltage is able to vary between a minimum value and a maximum value, the difference between the frequency of rotation of the turning magnetic field in the vicinity of the rotor and the frequency of rotation of the rotor being maintained substantially constant as long as the amplitude of the supply voltage is less than the maximum value. Once the maximum value has been reached, the torque on the shaft of motor (2) is increased by increasing the slip.

Device for controlling an asynchronous motor

The vehicle drive system has an asynchronous motor mechanically coupled to a wheel of the vehicle, a rechargeable accumulator, a first converter interposed between the rechargeable accumulator and the motor and arranged so as to regulate the electric power supplied to the motor and a generator driven by an internal combustion engine, as well as a control circuit. To make it possible to recharge the accumulator under optimum conditions, the system also has a second converter arranged so as to regulate the power supplied by the generator to the accumulator and to the first converter.

Growing community of inventors

Merzligen, Switzerland

Rene Jeanneret