1、2600 英文单词， 13500 英文字符 ， 中文 4300 字 文献出处： Endo H , Ito M , Ozeki T . Development of Toyotas transaxle for minivan hybrid vehiclesJ. JSAE Review, 2003, 24(1):109-116. Development of Toyotas transaxle for mini-van hybrid vehicles Hiroatsu Endo, Masatoshi Ito, Tatsuya Ozeki Abstract In June 2001, Toyota
2、Motor Corporationdeveloped the Toyota Hybrid System-CVT (THS-C) for mini-vans. A new transaxle developed for the front drive unit of the THS-C system is compact, lightweight, and highly efcient. The unit achieves excellent driving comfort with smooth speed change by CVT control and provides high-lev
3、el driving power control by wet multiple disc clutches. 1. Introduction CO2 emissions reduction through enhanced fuel economy and clean exhaust emissions are important development themes in the automobile industry. A dual benet to the environment is achieved by alleviating global warming and also by
4、 preventing pollution. A hybrid system that incorporates an electric motor is an effective means of improving fuel economy. Espe- cially, mini-vans with large and heavy bodies typically have lower fuel economies than passenger cars. Thus the merits of developing a hybrid type mini-van are substantia
5、l. Toyotas THS-C (Fig. 1) is the most favorable hybrid system for mini-vans 1. Fig. 1. Configuration of THS-C and THS The THS-C hybrid system has the following features: *A reduced dependency on electric motor power (Table 1) yields further compactness and lower cost. *A torque increase mechanism wi
6、th CVT, and control of the drive power source, enhance driving performance. *A 4WD system, most desired for mini-vans, has been adopted. An electric 4WD system exhibits improved fuel economy in four-wheel regeneration and ordin- ary FWD operation. To achieve them we designed and developed a new transaxle for the front drive unit of THS-C system. Table 1.Specication of THS-C and THS ESTIMA (THS-C) PRIUS (THS) Curb weight 1850 kg 1220 kg Battery 216 V, 6.5Ah 274 V, 6.5 Ah Front mo
