Regie Nationale Des Usines Renault

Renix Electronique

Bernard Montaron

Claude Edmond Lombard

Gerard Catier

Claude Moyses

A piezoelectric sensitive element has elements for collecting charges appearing between the sides of the piezoelectric element. These elements include a flexible insulating strip having one the same face two distinct conductive layers each of which has an annular layer for contact with the piezoelectric sensitive element and connected by a connecting layer to a terminal layer. Application is to the detection of pinging in internal combustion engines.

Axial acceleration sensor

A system for use in a motor vehicle, made up of a group of sensors such as accelerometers, a microprocessor, and a group of passenger-safety devices. The sensors' inform the microprocessor of the levels of acceleration at different points in the vehicle. The microprocessor processes this information, checks the sensors' functioning, the power source and the safety devices. In the case of a strong shock, the microprocessor triggers the safety devices suited to the particular situation: electromagnetic door-openers, safety belts with pyrotechnic tightening action, inflatable air bags, and loosening devices for safety belts.

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Toulouse, France

Bernard Montaron