What is the appropriate voltage tolerance value for the steering wheel?
2 Answers
25mV is the most suitable. Below is some extended information about the steering wheel: Introduction: The steering wheel is a wheel-shaped device used to control the direction of cars, ships, airplanes, etc. This new design of the steering wheel emerged to meet the needs, introducing a gear system between the driver and the wheels that operates flexibly and effectively isolates intense vibrations from the road. Function: The steering wheel is generally connected to the steering shaft via splines. Its function is to convert the force applied by the driver to the edge of the steering wheel into torque, which is then transmitted to the steering shaft. Using a steering wheel with a larger diameter reduces the hand force required from the driver when turning. The steering transmission shaft, acting as a connector between the steering gear and the steering shaft, facilitates the standardization of the steering gear, compensates for errors during manufacturing and installation, and optimizes the installation of the steering gear and steering wheel in the vehicle.
I've been repairing cars for many years, and steering wheel voltage issues are quite common. The appropriate voltage tolerance range is generally between 11V and 15V. If it's too low, the electric power assist will fail, making the steering wheel heavier; if it's too high, it may burn out modules or fuses. A standard 12V system allows for fluctuations of ±1-2 volts, but this depends on the vehicle's design. When checking, first use a multimeter to measure the battery voltage and alternator output, ensuring it stays steady around 12.8V. Loose wiring harnesses or poor grounding often cause fluctuations, triggering the EPS warning light. Regular battery maintenance and cleaning terminals can extend lifespan—safety comes first, don't wait for an accident.
