[雙語翻譯]驅(qū)動橋外文翻譯--豐田小型混合動力汽車變速驅(qū)動橋的開發(fā)

1、2600 英文單詞， 英文單詞，13500 英文字符，中文 英文字符，中文 4300 字文獻出處： 文獻出處：Endo H , Ito M , Ozeki T . Development of Toyota's transaxle for minivan hybrid vehicles[J]. JSAE Review, 2003, 24(1):109-116.Development of Toyota’s transaxle f

2、or mini-van hybrid vehiclesHiroatsu Endo, Masatoshi Ito, Tatsuya OzekiAbstractIn June 2001, Toyota Motor Corporationdeveloped the Toyota Hybrid System-CVT (THS-C) for mini-vans. A new transaxle developed for the front dr

3、ive unit of the THS-C system is compact, lightweight, and highly efficient. The unit achieves excellent driving comfort with smooth speed change by CVT control and provides high-level driving power control by wet multipl

4、e disc clutches.1. IntroductionCO2 emissions reduction through enhanced fuel economy and clean exhaust emissions are important development themes in the automobile industry. A dual benefit to the environment is achieved

5、by alleviating global warming and also by 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 typi

6、cally have lower fuel economies than passenger cars. Thus the merits of developing a hybrid type mini-van are substantial. Toyota’s THS-C (Fig. 1) is the most favorable hybrid system for mini-vans [1].Fig. 1. Configurati

7、on of THS-C and THSThe 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 with CVT, and control o

8、f 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 opera

9、tion.To achieve them we designed and developed a new transaxle for the front drive unit of THS-C system.Table 1.Specification of THS-C and THSinputs are installed, through the planetary gears, onto the input shaft that i

10、s connected to the primary pulley of the CVT.Engine torque is input to the planetary gears via the torsional damper. Motor torque is input directly into the planetary gears to control drive power switching via the wet mu

11、ltiple-disc clutch.In the ratio shift section the Super CVT’s mechanism is applied. It is noted for its high efficiency and smooth speed changing. Steel push belts are used to provide a wide range shift ratio (Table 2).T

12、able 2.Specifications of transaxleCVT belt Element width 30mm/9 bandsPlanetary gear ratio Forward 1.000, 1.754 (ETC mode)Reverse 1.00, 0.754 (Rev. friction mode)Pulley ratio Forward 2.396-0.428Reverse 2.396-1.211Final ge

13、ar ratio 5.182Service oil Toyota genuine CVT fluidShift range P-R-N-D-BOverall length 411 mmMass (wet) 110 kgPlanetary gear type Double pinion typeFig. 3. Cross section of oil pump unitAn electronically controlled hydrau