摘要
1、AT的技市发展趋势
（1）传动系统向多速发展
20世纪70年代中期4速AT开始被广泛应用，1989年Nissan公司在3L轿车Cedric上装备了5速AT，2001年BMW公司在7系列后轮驱动车装备6速AT，2003年Benz公司在后轮驱动轿车上装备7速AT，如今ZF公司已经成功推出乘用车8速AT。随着AT的档位的不断增加，对于增强传递动力以及降低燃油有着重要意义。
Alone with higher and higher needs for coziness of auto by people,there is no doubt,that the fact of equipping rate of automatic transmission in modern auto is getting higher and higher,especially when the automatic transmission is gradually more attended to operation ability.However,along which direction will the automatic transmission is going in the future? The technical development trend and technology earnestly expected for optimization & perfection are introduced and analyzed for AT,AMT,CVT,DCT.
出处
《汽车零部件》
2011年第11期25-26,共2页
Automobile Parts
