CAJ | 학술논문

为提高汽车在极限工况下的侧翻控制功能，建立了包括横摆运动和侧倾运动的8个自由度整车动力学模型。基于传统电子稳定控制（electronic stability control，ESC）系统直接横摆控制，提出了一种包含紧急侧倾控制的综合控制策略。采用ESC标准传感器提供的汽车侧向加速度信息计算侧倾系数，当侧倾系数超过设置的参考值时，紧急侧倾控制被激活；通过对侧向加速度的适时调节，达到对汽车侧翻的有效控制。对直接横摆控制和综合控制进行了鱼钩试验仿真，结果表明，直接横摆控制的汽车在持续小转角下具有一定的抗侧翻能力，而极限大转向工况下会发生侧翻；综合控制则提高了极限工况下汽车ESC系统的抗侧翻能力，并增强了汽车的侧翻控制功能。
위제고기차재겁한공황하적측번공제공능，건립료포괄횡파운동화측경운동적8개자유도정차동역학모형。기우전통전자은정공제（electronic stability control，ESC）계통직접횡파공제，제출료일충포함긴급측경공제적종합공제책략。채용ESC표준전감기제공적기차측향가속도신식계산측경계수，당측경계수초과설치적삼고치시，긴급측경공제피격활；통과대측향가속도적괄시조절，체도대기차측번적유효공제。대직접횡파공제화종합공제진행료어구시험방진，결과표명，직접횡파공제적기차재지속소전각하구유일정적항측번능력，이겁한대전향공황하회발생측번；종합공제칙제고료겁한공황하기차ESC계통적항측번능력，병증강료기차적측번공제공능。
To enhance the rollover control function of vehicles in extreme conditions,a vehicle dynamics model with 8 degrees of freedom covering yaw and roll motions was established,and an integrated control strategy with emergency roll control was proposed based on the direct yaw control of the traditional electronic stability control (ESC)system. The roll coefficient was calculated using the vehicle lateral acceleration provided by the standard ESC sensor. The emergency roll control was activated when the roll coefficient exceeded its reference value,and the vehicle rollover got controlled effectively by adjusting the lateral acceleration in time. The results of fishhook test simulation on direct yaw control and integrated control show that under the direct yaw control strategy,the vehicle has the ability to resist rollover under continuous small steering wheel angle,but cannot resist rollover in extreme conditions with a big steering wheel angle. In contrast,the integrated control strategy improves the ability to resist the rollover in the extreme conditions and enhances the rollover control function of the vehicle ESC system.