Abstract: The speed of rotation and the angular position of the rotating part (2, 3) of the engine (1) are measured continuously, and the fuel injection is cut off at predetermined speed and angular position values of the rotating part (2, 3) in order to stop the engine in a predetermined position that facilitates restarting the engine. In order to restart the engine, using a starter (4), fuel is injected into at least one cylinder of the engine when the piston moving in the cylinder is in a determined position. The spark ignition and/or fuel injection is interrupted at predetermined speed and angular position values of the rotating part (2, 3) of the engine (1), and fuel is injected into at least one cylinder of the engine (1) during the last revolution of the engine before stopping. In order to restart the engine, ignition is carried out in at least one cylinder, the piston of which is in the compression position at the moment when the engine (1) stops.

Abstract: A method for cooling a motor vehicle engine consists in regulating the volume and the flow rate of a coolant fluid in a hydraulic circuit provided with a degassing bypass hose equipped with an electronically controlled proportional actuator and with means forming direct return of fluid or bypass. The method comprises a step of determining the temperature of the cooling liquid, a step of comparing the temperature of the cooling liquid with a first and second threshold temperature, and a step of controlling the opening of the actuator such that, when the fluid temperature is between the first and the second threshold temperatures, the degree at which the actuator is opened is at least temporarily proportional to the cooling fluid temperature. The invention also concerns a device for cooling a motor vehicle engine.

Abstract: The invention concerns a device for detecting a running surface for vehicle, comprising a plurality of sensors designed to be oriented towards the running surface to determine modifications thereof, means for processing the data concerning information picked up by the sensors, wherein at least part of the sensors are relatively arranged such that at least the transverse distances separating two adjacent points of aim on the ground of the sensors increase towards a longitudinal axis and along a direction substantially perpendicular to this axis. The invention also concerns a vehicle using this device.

Abstract: The invention relates to a starting system (1) for an internal combustion engine comprising pressurized fuel supply means (3), an accumulator means (2), which is supplied with pressurized fuel by said supply means, and at least one injection means (4) which is supplied with fuel by the accumulator means (2). According to the invention, the system also comprises a device for storing pressurized fuel (5), which is supplied due to the pressure in the accumulator means. At start-up, the aforementioned fuel storage device can supply the stored fuel in such a way as to provide a second fuel compression means which enables the engine to start up more rapidly. The invention is particularly suitable for use in the area of common-rail engines.

Abstract: The invention concerns door retaining means comprising at least a retention pin fixed to the side-member provided in the door lining opposite the pin when the door is closed.