Control method of preventing slip of power train

Abstract

Abstract PURPOSE:To surely prevent slip, by detecting two kinds of speeds in accordance with the degree of a slip which takes place, and as well by reducing the output torque of a power train to make the difference between these speeds zero. CONSTITUTION:In accordance with the values VL, VR of left and right rear wheel speed signals 142, 143 which are stored in a RAM1430 by means of an input interface circuit 1200, a CPU1300 computes the ratio of VR/VL, and judges that a slip takes place, when this ratio is out of a predetermined range of reference value. Then the CPU calculates a slip rate S(S=1-VR/VL), and differentiates the slip rate to obtain the differential value D of the slip rate after the differentiated value of the slip rate is multiplied by a constant K1. Further, this differential value D is added with the product of the slip rate S and a constant K2 to obtain a torque compensating value T. Further, the CPU calculates a throttle valve opening degree compensating value (f) which corresponds to the compensating value T, and issues an air-amount control signal 220 corresponding to this compensating value (f).

Inventors

• 👤 Akio Hosaka
• 👤 保坂　明夫

Bibliographic Details