Valeo

About: Valeo is a company organization based out in Paris, France. It is known for research contribution in the topics: Heat exchanger & Clutch. The organization has 8904 authors who have published 14808 publications receiving 83614 citations. The organization is also known as: Société anonyme française du Ferodo.

Method for determining the depth of a parking space using ultrasonic sensors and associated system

Abstract: A method for determining the depth of a parking space using at least one ultrasonic vehicle sensor. According to the method, the following steps are carried out as the vehicle drives longitudinally past the parking space: a) an ultrasonic wave is emitted, b) echo signals of the emitted ultrasonic wave are collected within a measuring window, c) the dispersion is determined and/or the distribution of the echo signals within that dispersion is determined, d) a depth is defined if the dispersion range of all and/or several echo signals that form a concentration within the distribution lies below a pre-determinable threshold value.

Vehicle air conditioning circuit using a refrigerant fluid in the supercritical state

Abstract: Refrigerant fluid such as CO 2 , compressed to the supercritical pressure by a compressor, is delivered selectively through a three-way valve, either into a branch of the circuit containing a cooler, an expansion device and an evaporator for cooling the cabin of a vehicle, or into a branch containing another expansion device and a heat exchanger for the purpose of heating the cabin.

Vibro-Acoustic Simulation and Optimization of a Claw-Pole Alternator

Abstract: This study aims at minimizing the acoustic noise from a magnetic origin of a claw-pole alternator. This optimization is carried out through a multiphysics simulation, which includes the computation of magnetic forces, vibrations, and the resulting noise. Therefore, a mechanical model of the alternator has to be developed to determine its main modes. Predicted modal parameters are checked against experimental results. Based on this model, the sound power level is simulated and compared with measurements. Finally, the rotor shape is optimized and a significant reduction of the noise level is found by simulation.

Air deflector for a windshield wiper with a resilient buffer to prevent abrasion

Abstract: An air deflector for a windshield wiper blade includes a profiled portion and attachment means for attaching it to either a wiper blade or a wiper arm carrying the wiper blade. At least one resiliently deformable annular cushioning element is provided on the deflector. The invention is especially applicable to automotive vehicles.

Sensor joined to a glass pane with a silicon gel

Abstract: Rain sensors are currently joined to the windscreen of an automobile with the help of adhesive tapes. Adhesive tapes of this type harden and a series of precautionary measures has to be taken when attaching the sensors to prevent vacuum pockets from forming between the tapes, the windscreen and the sensor. The aim of the invention is to provide a solution to this problem. To this end, a gel (10) is used as the joining agent. The gel used does not harden even in the long term, and air pockets which form inside the gel or on the boundary surfaces with the glass pane (11) or the sensor (2, 3) migrate into the area around the sensor. The invention also relates to the attachment of a rain sensor to a glass pane (11) without special elastic intermediate elements, using the elasticity of the joining agent (10) for tolerance compensation. Advantageous further embodiments describe the construction of the holding device (1.4) required for said attachment.