Yaw-Rate Sensor & G-Sensor: Description

1. The yaw-rate & lateral G sensor is applied for the ESC system.
2. The yaw-rate is the angular velocity, when a vehicle turns a corner, and the lateral G is the acceleration to move a vehicle out of the way when cornering.
3. The sensor is located in the crash pad lower floor on vehicle.
   Fig 1: Identifying Yaw-Rate Sensor

   Courtesy of HYUNDAI MOTOR CO.

SPECIFICATION

Description			Specification	Remark
Nominal supply voltage			11.5 ~ 12.5 V
Supply voltage range			8 ~ 16 V
Supply current			Max. 120 mA	Typ. 75 mA
Reference Voltage Output			2.464 ~ 2.536 V	Typ. 2.5 V
Operating temperature range			-40 ~ 85°C
Yaw-late sensor	Measurement range	+w direction, left turn	Min.100°/s	Typ. 111°/S
		-w direction, right turn	Min.100°/s	Typ. 111°/s
	Non-linearity		-1 ~ 1 %
	Offset (within life, within operating temperature)		3.75°S
	Upper cut-off frequency		Min. 45 Hz	Typ. 60 Hz
Lateral G sensor	Measurement range	+y direction, left turn	Min.1.8 g	Typ. 2 g
		-y direction, right turn	Min. -1.8 g	Typ. 2 g
	Non-linearity		-4-4 %
	Offset (within life, within operating temperature)		-0.09 ~ 0.09 g
	Upper cut-off frequency		Min. 20 Hz	Typ. 40 Hz

Fig 2: Output Characteristic Graph

Courtesy of HYUNDAI MOTOR CO.

Fig 3: Circuit Diagram (Yaw-Rate & Lateral G Sensor)

Courtesy of HYUNDAI MOTOR CO.