Automotive Sensors & Imaging technology

Also relating to autonomous driving, there is the need for inertia measurement units (IMUs). These are multi-axes devices that can deliver constantly updated parametric data on the angular orientation, velocity and direction of a vehicle. This is vital in situations where satellite navigation is interrupted, due to the vehicle entering a tunnel, a multi-storey car park, or moving between tall buildings.  

The next trend that must be outlined is x-by-wire. This is allowing mechanical systems, such as the steering column, throttle, and brake, to be replaced by electronic hardware - with benefits being derived in terms of reduced weight, less space being taken up and greater operational reliability. The movement of pedals and the vehicle’s steering wheel need to be accurately determined. This can be achieved via high resolution linear and rotary magnetic sensors.

Use of optical ToF sensor technology within the cabin will enable the monitoring of vehicle occupants. Through this, better airbag deployment may be actioned by firstly establishing if a specific seat is occupied, then judging the size of the person in that seat so that the speed/strength of deployment is appropriate. Also, the attention of the driver can be ascertained at any given time to see if they are concentrating on the road and, if not, actioning an automated response to any imminent hazard.

An ICE vehicle’s engine management system (EMS) will need to access data from temperature and pressure sensors, for performance monitoring purposes. Accurate pressure measurement enables better control of the fuel supplied to the engine, while temperature sensors can ensure that the liquid coolant is working effectively. Temperature sensing devices may also be used to check the conditions within the cylinder and the exhaust gas output. There is, likewise, a growing need for these devices within EVs. Here they are providing support to the battery management system (BMS), by monitoring the status of each of the battery cells so that potential overheating situations can be avoided.

EBV’s expansive inventory includes automotive-grade pressure sensors, TPMS devices, temperature sensors, MEMS-based IMUs, Hall sensors and CMOS image sensing devices for camera systems.