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rebab.net forums > Models> Saturn Vue> Vue Tech
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VUE electrical Power Steering
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VUE electric Power Steering
Does anyone have schematics or technical information on exactly how the VUE"s electrical power steering system works? desire to understand how it"s hooked up electrically.Thanks.
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Welcome to the Board.First question maight be why do you want to know how it is hooked up? it is method to high value a unit to be simply fooling approximately with.Here is a summary from the business manual.Power Steering device Description and OperationThe electrical power steering (EPS) device reduces the lot of effort needed to steer the vehicle. The device uses the body manage module (BCM), strength steering manage module (PSCM), talk sensor, discrete battery voltage supply circuit, EPS motor, serial data bus, and the instrument panel swarm (IPC) message facility to carry out the mechanism functions. The PSCM, talk sensor, nor the EPS motor are serviced separately from each other or native the steering column. Ant EPS materials diagnosed to be malfunctioning calls for replacement the the steering tower assembly, additionally known as the EPS assembly.Torque SensorThe PSCM supplies a speak sensor together it"s key input for determining the quantity of steering assists. The steering column has an input shaft, indigenous the steering wheel come the talk sensor, and an output shaft, from the talk sensor to the steering column coupler. The input and also output shafts are separated through a torsion bar, wherein the talk sensor is located. The sensor consists of a compensation coil, detecting coil, and 3 detecting rings. This detecting rings have actually toothed edges that confront each other. Detecting ring 1 is addressed to the output shaft, detecting ring 2 and also 3 are addressed to the intake shaft. The detecting coil is positioned about the toothed edges of detecting ring 1 and also 2. Together torque is used to the steering tower shaft the alignment the the teeth in between detecting ring 1 and also 2 changes, which causes the detecting coil signal voltage come change. The PSCM recognizes this adjust in signal voltage together steering shaft shaft torque. The compensation coil is provided to compensate for transforms in electrical circuit impedance due to circuit temperature alters from electric current and also voltage levels as well as ambient temperatures for accurate torque detection.EPS MotorThe EPS engine is a 12 volt brushed DC reversible motor through a 65 amp rating. The motor assists steering with a worm shaft and reduction equipment located in the steering pillar housing.Power Steering regulate Module (PSCM)The PSCM supplies a mix of speak sensor inputs, automobile speed, calculated device temperature and also the steering calibration to identify the quantity of steering assist. When the steering wheel is turned, the PSCM offers signal voltage native the speak sensor to detect the quantity of torque being used to the steering column shaft and also the lot of current to command to the EPS motor. The PSCM receive serial data indigenous the engine manage module (ECM) come determine automobile speed. At short speeds more assist is detailed for easy turning during parking maneuvers. In ~ high speeds, less assist is listed for boosted road feel and also directional stability. The PSCM no one the EPS motor room designed to take care of 65 amps continuously. The PSCM will enter overload protection mode to avoid system thermal damage. In this setting the PSCM will limit the lot of existing commanded come the EPS engine which reduces steering assist levels. The PSCM also chooses which steering calibration to use once the ignition is turned ON, based upon the VIN. The PSCM includes all 8 that the steering calibrations i beg your pardon are different in relation to the vehicles RPO"s. The PSCM has the capability to finding malfunctions within the EPS system. Any malfunction detected will reason the IPC message facility to display screen the PWR mrs (or strength Steering) warning message.The wiring follow to the schematic is two various power resources in and a ground. Along with with two interaction wires to the rest of the manage modules in the car.