Measurement Methods of Automobile Fire-Lock Contact Resistance
Chong Chen, Sheng Zhao, Xiangou Zhu, Peng Ye, Guichu Wu · International Conference on Electric Information and Control Engineering · 2012
The measuring methods based on the intermittent current stimulation and the four-wire current reversal technique are used to improve the measurement accuracy of automobile fire-lock contact resistance. The hardware system of automobile fire-lock contact resistance consists of the intermittent-current source, the sampling and processing circuits of current and voltage. The data fusion algorithm can calculate the precise value of contact resistance. The measurement accuracy of contact resistance is less than 2%.