Which sensors are used by Electronic Stability Control?

Which sensors are used by Electronic Stability Control?

• A. Steering sensor and lateral acceleration sensor.
• B. Oil pressure sensor.
• C. Fuel gauge sensor.
• D. Outside temperature sensor.

Answer: (A)

Electronic Stability Control works by comparing what the driver intends with how the car is actually moving. The two main sensors that provide this information are the steering input sensor, which measures the steering wheel angle (and sometimes steering torque) to gauge driver intent, and the lateral acceleration/yaw rate sensor, which tracks how quickly the vehicle is rotating side to side and how much it’s sliding sideways. When ESC detects a mismatch between the driver’s steering and the vehicle’s motion—such as a skid or excess yaw—it can brake individual wheels and/or cut engine torque to bring the car back onto the intended path. The other sensors listed don’t feed ESC with the necessary stability data (oil pressure, fuel level, outside temperature), so they’re not the ones ESC relies on.

Electronic Stability Control works by comparing what the driver intends with how the car is actually moving. The two main sensors that provide this information are the steering input sensor, which measures the steering wheel angle (and sometimes steering torque) to gauge driver intent, and the lateral acceleration/yaw rate sensor, which tracks how quickly the vehicle is rotating side to side and how much it’s sliding sideways. When ESC detects a mismatch between the driver’s steering and the vehicle’s motion—such as a skid or excess yaw—it can brake individual wheels and/or cut engine torque to bring the car back onto the intended path. The other sensors listed don’t feed ESC with the necessary stability data (oil pressure, fuel level, outside temperature), so they’re not the ones ESC relies on.