The tire pressure monitoring system TP雜農MS can monitor the pressure of all t學北ires during the stati去校c and dynamic operation of 業亮the vehicle, and can報習 send out alarm prompt information就雪 in time for the status of 個科low tire pressure, high tire pre路房ssure and air leakage (chro現和nic air leakage and sudden tir在謝e burst). It can improve au房她tomobile and personal safety, and red子商uce fuel consumption (too low or too木紙 high tire pressure will in腦妹crease fuel consumption).

Since the TPMS tire p高車ressure sensor module is installed報水 inside the automobile tire, i子頻t is required to be stable and北都 reliable, small in size,美舊 light in weight and long in場務 service life (5 to 10 years) 術作under the extremely 說文bad working environmen廠對t (high temperature difference, high 醫銀pressure and high acceleration). Theref她遠ore, there are high 你資requirements for all devices南光 on the TPMS tire pressu亮雪re sensor module (including sensors, c討數rystal oscillators, 黑東RF devices, batteries an雜員d even PCBs).

This paper focuses on the battery of T謝路PMS tire pressure se呢計nsor module. Battery can be sai子那d to be one of the most importan道說t components of TPMS sensor mo間國dule. In order to make T照可PMS sensor module reach the service lif你內e of 5 to 10 years in hars公都h environment, in addi子窗tion to using low-powe習北r devices, reducing quiescent cur知資rent, selecting appropriate transmis市但sion power, and considering s區綠oftware control strategy (how often到和 data packets are sent and how man車土y frames of data are sent each t還街ime). Another most direct男高 is to choose batteries with la有劇rge capacity, but this will bring看日 another problem. Batteries with l窗農arge capacity will have greater wei南服ght and volume, and the corres船短ponding cost will be high畫算er. Therefore, there needs to be a ba喝靜lance.