Tesla will update its cars' Autopilot function with new safety features designed to prevent collisions, the company has announced.特斯拉公司日前宣称，特斯拉汽车将升级其自动驾驶仪以防止碰撞，从而追求更卓越的安全性能。Chief executive Elon Musk told reporters that his cars would soon make greater use of the on-board radar to detect obstacles ahead.公司的首席执行官伊隆·马斯克在接受采访时告诉记者，他的汽车很快就可以更好地使用车载雷达探测前方的障碍物。The car will also do more to make sure drivers are paying attention while in self-driving mode.同时，汽车也将在启动自动驾驶模式的时候，确保驾驶员会集中注意力。A Tesla driver died earlier this year when the technology missed a lorry.今年早些时候，一位特斯拉驾驶员由于自动驾驶技术未能检测到货车而死亡。

As part of the update to self-driving mode, if repeated warnings to hold the steering wheel are ignored, the vehicle will need to be parked before the autonomous functions can be re-engaged.作为自动驾驶模式更新的一部分，如果司机忽略要求驾驶员操控方向盘的持续警告，汽车就会在自动驾驶功能被重新启动前靠边停下来。When drivers activate Autopilot, the car takes control - keeping pace with traffic and even changing lanes.当驾驶员启动自动驾驶装置时，汽车就会自己掌控局面，它可以保持与交通路况一致甚至是自动地改变车道。A Tesla driver was killed in May when the car he was driving hit a lorry that had been turning left - Autopilot was unable to spot the white trailer against the bright sky.今年5月，一名特斯拉驾驶员被一辆正在左转弯的货车撞上而丧命。这主要是因为特斯拉的自动驾驶系统在明亮的白天里难以识别这辆白色的拖车。No date has been announced for the conclusion of the investigation, the US National Highway Traffic Safety Administration told the BBC.英国广播公司从美国国家公路交通安全管理局中了解到，调查结论公布的日期尚未确定。In a call with reporters, Mr Musk said the NHTSA appeared to be "happy" with the Autopilot update.在与记者的通话中，马斯克先生表示，美国国家公路交通安全管理局对此次自动驾驶仪的升级感到非常满意。