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根据使用调查,我厂生产的TJ—620型旅行车维持直线行驶的能力较差。有些驾驶员反映:“行驶时方向盘来回摆”,“车速超过40公里/小时时,方向不好掌握,车子老找不正”,“慢速时,方向盘发沉、发死,快速时,方向飘”。还有人反映,车子跑快了,有“摆头”的感觉。由于方向不稳,当车速超过50～60公里/小时时,驾驶员要不断地调整方向盘,感到精神紧张和疲劳,只好放慢车速。我们抽调了一些反映操纵性较差的车子进行试车和初步试验,证实了TJ—620型旅行车维持直线行驶能力的确较差。如驾驶员为维持直线行驶一公里不断转动方向盘的总转角,一辆操纵性较好的样车为45度-秒,而TJ—620型旅行车达到1067度一秒。
According to the survey, the TJ-620 Wagon produced by our factory has a poor ability to maintain a straight line. Some drivers reflect: “steering wheel back and forth while driving”, “when the speed of more than 40 km / h, the direction is not good to grasp, the old car is not correct,” “slow, the steering wheel fat, fatal, fast, the direction of drift ”. There are people who reflect the car ran faster, there is “swagger” feeling. Due to the unstable direction, when the vehicle speed exceeded 50-60 km / h, the driver constantly adjusted the steering wheel and felt nervous and tired and had to slow down. We deployed a few tests and preliminary tests that reflected poorly maneuverable vehicles and confirmed that the TJ-620’s ability to maintain straight-line traffic was indeed poor. For example, to maintain the total turning angle of one kilometer in a straight line, a pilot operated a 45 degree-second prototype with a good maneuverability while the TJ-620 reached a maximum of 1067 degrees.