CAE Method for Automotive Remote Keyless Entry System Range Simulation
2022-01-0147
03/29/2022
- Event
- Content
- Remote Keyless Entry (RKE) systems are widely used as the standard solution for conveniently accessing vehicles by remote control. The RKE system consists of a key fob RKE transmitter and in-vehicle Remote Function Actuator (RFA) module. The RFA module receives a signal from the RKE transmitter to perform remote control functions, and transmission range is an important requirement to evaluate the performance of the RKE system. To accelerate product development cycles and reduce engineering costs of physical test, a computer aided engineering (CAE) method has been developed to predict transmission range of the RKE system. Firstly, the detailed computational electromagnetic (CEM) models of the transmitting and receiving antennas were developed to ensure that the far field radiation patterns were in good agreement with test data. Secondly, the full vehicle meshed model and the articulated human model were introduced to the CEM models to reflect the physical test environment. Lastly, the RKE system range model was built by including both the key fob held by an articulated human body and RFA module installed in the fully meshed vehicle. The transmission range could be extracted when the simulated received power reached the receiving sensitivity of the RFA module.
- Citation
- Chen, S., Pan, Y., and Sun, H., "CAE Method for Automotive Remote Keyless Entry System Range Simulation," SAE Technical Paper 2022-01-0147, 2022, .