An Experimental Study on the Safety Standard of Electronic Throttle Control System

전자식 가속제어장치 안전기준에 대한 실험적 고찰

  • 윤경철 (한국수입이륜차환경협회) ;
  • 용기중 (경일대학교 기계자동차학부)
  • Received : 2019.01.15
  • Accepted : 2019.01.31
  • Published : 2019.03.31


Optimal engine control is needed to cope with the global environmental regulations that are globally enforced. For optimum engine control, the electronic throttle control system (ETCS) is a prerequisite. Automotive makers are having an effect on reducing emissions and improving fuel economy by applying ETCS which is designed to secure stability. The ETCS controls the output of the throttle valve by passing the output value of the accelerator position sensor (APS) to the engine control unit (ECU). In this study, the authors investigated the safety standards of domestic and overseas accelerator control system and tried to understand how the air flow control affects the engine output by replacing the throttle. The authors suggest an improvement proposal of safety standard based on the result of driving evaluation by various modes.

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Fig. 1 Environment test chamber

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Fig. 3 Acceleration control system device test equipment

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Fig. 4 Comparison of Torque & MAP

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Fig. 5 Results based on Torque & MAP standard

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FIg. 2 Chassis dynamometer in test chamber

Table 1 Safety Standards Comparison of acceleration control system

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Table 2 Difference in torque & MAP return time

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Table 3 Maximum time to return to idle of 2,400cc vehicle at 52℃ (unit : sec)

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Table 4 Maximum time to return to idle of 2,400cc vehicle at 25℃ (unit : sec)

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Table 5 Maximum time to return to idle of 2,400cc vehicle at -18℃ (unit : sec)

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Table 6 Difference in torque & MAP return time

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