Peugeot Citroen Automobiles Sa

Peugeot Citroen Automobiles Societe Anonyme

Olivier Boury

Serge Belmont

Yvan Le Neindre

Gaetan Rocq

Sebastien Besnard

Thomas Boutou

Sébastien Besnard

The invention relates to a device () for the transmission of power between a shaft () of a heat engine () and a wheel () axle shaft () of a motor vehicle. The inventive device () comprises at least one electrical machine () comprising a machine shaft () and a mechanical pump () comprising a pump shaft (). The shaft () of the engine () and the machine shaft () are connected to the pump shaft () by means of a mechanism () comprising two free wheels. The connection between the pump () and the shafts () of the transmission device is such that the pump () can be driven in any vehicle operating mode.

Power transmission device for a motor vehicle which is equipped with a free wheel mechanism that drives an oil pump

The invention essentially relates to a method for blocking wheels of a vehicle when stopped in which a transmission device () is placed between an output () of a heat engine () and a wheel () axle shaft (). This device () comprises an input shaft () connected to the output () of the engine (), an output shaft () connected to the wheel axle shaft (), and at least one electrical machine (). The device also comprises a mechanical assembly () interconnecting the input shaft (), the output shaft () and the shaft () of the machine. This assembly () is connected to a bridge () that, in turn, is connected to the wheel () axle shaft (). The invention provides that, in order to block the wheels when the vehicle is stopped and to limit an observable torque on the elements of the assembly (), the wheel axle shaft is blocked by the mechanical assembly.

Method for blocking wheels of a hybrid vehicle when stopped and associated transmission device

The present invention essentially concerns a method for a motor vehicle speed ratio shift. Said method uses a power transmission device () comprising a traction chain consisting of a heat engine (), a clutch (), an electrical machine (), a gearbox (), and wheels (). The invention is characterized in that, upon shifting, the heat engine () is started before, during or after the torque (CMEL) observable on the shaft () of the electrical machine () is canceled, by means of a starter system () mechanically independent of the electrical machine ().

Speed ratio shift method

Growing community of inventors

Nanterre, France

Olivier Boury