城市安全系统通过装在风挡玻璃后的激光传感器监视前方路段，计算出相关车速和距离并在事故无法避免时紧急刹车（城市安全系统在行驶速度很低时是关闭的，这样方便驾驶员可以把车近距离停放在其它车辆旁边）。
It applies the brakes if a collision cannot be avoided. (The system switches off at very low speeds, so that drivers can park close to other vehicles.)
正当沃尔沃忙于自动刹车系统上时，本田——在2010款普锐斯，还有凌志的HS250h和RX450h——致力于自动驾驶系统。
While Volvo is working on autonomous braking, Toyota—in the 2010 Prius, Lexus HS250h and Lexus RX450h—can steer for the driver.
正当沃尔沃忙于自动刹车系统上时，本田——在2010款普锐斯，还有凌志的HS250h和RX450h——致力于自动驾驶系统。
While Volvo is working on autonomous braking, Toyota--in the 2010 Prius, Lexus HS250h and Lexus RX450h--can steer for the driver.
此系统通过检测刹车速度和力度判断驾驶员是非确实需要紧急停车。
Brake Assist measures the speed and force with which the brake pedal is pushed to determine whether the driver is attempting an emergency stop.
此系统通过检测刹车速度和力度判断驾驶员是非确实需要紧急停车。
Brake Assist measures the speed and force with which the brake pedal is pushed to determine whether the driver is attempting an emergency stop.
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