2. Active Pedal - Acceleration

Electronic throttle control replaces the mechanical link between acceleration pedal and throttle valve (drive-by-wire).

Linear Hall sensors with analog output are used to detect pedal courses with small angle (<20°). They ensure reliability and high accuracy, especially to detect the accelerator idle position.

Two sensors are always used for redundancy. 

Sensor Type: Linear

Micronas Products inside:

HAL 830

HAL 2420

HAR 24xyWatch video

3. Powertrain Valves - Throttle

The throttle valve directly regulates the amount of air entering the engine (gasoline internal combustion engine) or is used to generate the intake manifold vacuum (diesel engine). Linear or 2D Hall sensors with analog output are used to detect throttle position. Sensors with integrated capacitor bring EMC robustness and system cost advantages

Sensor Type: 2D, Linear

Micronas Products inside:

HAC 830

HAL 2425

HAL 37xy

HAR 37xy

4. Powertrain Valves - EGR

EGR works by recirculating a portion of the engine’s exhaust gas back into the engine cylinders leading to reduced fuel consumption of the vehicle and less CO2 emissions. Sensors based on the 3D HAL technology provide an optimal solution for the measurement of the actual valve position being robust against air gap and temperature variations. Depending on requirements Linear sensors can also be used. Some modules are leadframe based and sensors with integrated capacitor bring EMC robustness and system cost advantages. 

Sensor Type: 2D, Linear

Micronas Products inside:

HAC 830

HAL 37xy

5. Powertrain Valves - Thermal Valves

Sensors based on the 3D HAL technology provide an optimal solution for the measurement of the actual valve position being robust against air gap and temperature variations.

HVC all-in-one integrated solutions offer a very small footprint while matching the power requirement for a BLDC drive in a single chip without the need for external MOSFET. By this supporting the transition to an Intelligent Valve actuator.

Sensor Type: 2D
Controller Type: HVC

Micronas Products inside:

HAL 37xy

HVC 4223F

6. Battery Management

Battery located under the engine hood. A high-precision current sensor is required for battery management system structuring SOC (State of Charge) and SOH (State of Health) estimation. A current sensor features low output voltage drifts over temperature and multiple programmable magnetic field range. 

Sensor Type: Current Sensor, Linear

Micronas Products inside:

HAL 2425

HAR 24xy

7. Battery Management

Battery located in the trunk. A high-precision current sensor is required for battery management system structuring SOC (State of Charge) and SOH (State of Health) estimation. A current sensor features low output voltage drifts over temperature and multiple programmable magnetic field range.

Sensor Type: Current Sensor, Linear

Micronas Products inside:

HAL 2425

HAR 24xy

8. Gear position

Commonly located on the automatic transmission, the gear position sensor communicates the gear shift’s position to the vehicle’s electrical system. A combination of several linear Hall sensors (up to 6) is deployed in each transmission. Analog or PWM output is required. Depending on the distance to be measured, linearization setpoints can be required.

Sensor Type: Linear

Micronas Products inside:

HAL 182x

HAL 85x

HAL 24xy

9. Water / oil pumps - BLDC Motor

Hall switches are used for any type of pumps like for water and oil to detect the position of the impeller. To reduce the overall current consumption, the HAL 1502 3-wire version with only 1.6 mA is preferred. HVC products are also very well suited to provide efficient BLDC drives for types of pumps. Flexible solutions can be implemented in the area of Oil-, Water- and Fuel-pumps.

Sensor Type: Switch
Controller Type: HVC

Micronas Products inside:

HAL 15xy 2-wire

HVC 4223F

10. Liquid Level

Hall sensors are used to detect liquid levels, for instance the gasoline level inside the tank. Linearization setpoints are required.

Sensor Type: Linear, 2D

Micronas Products inside:

HAL 85x

HAL 2425

HAL 37xy

11. Shift Lever Position

The gear shift application setup can be realized either as extremely price-attractive solution by using several Hall switches placed at each gear position or by a highly integrated solution using only one 2D sensor which is capable of measuring extended distances 

Sensor Type: Switch, 2D

Micronas Products inside:

HAL 15xy 3-wire

HAL 37xy

HAR 37xyWatch video