| 摘要 |
PURPOSE:To promote an improvement in fuel consumption after securing the extent of fundamental performance by judging whether 4WD control is necessary or not, and when it is unnecessary, selecting a control transfer torque, and when it is necessary, selecting the maximum value between the control transfer torque and an environment corresponding transfer torque, and performing a job for clutch clamping force control. CONSTITUTION:This controller is provided with a control transfer torque calculating means (c) calcualting a control transfer torque for getting an optimum tuning characteristic on the basis of information by a front-rear-wheel speed detecting means (b) as a transfer torque to be trandsferred via a torque distributing clutch (a). In addition, torque conformed to a specified traveling ambience is calcualted by an ambience corresponding transfer torque calculating means (d). Then the controller is also provided with a 4WD requiredness judging means (e) which judges whether 4WD control is necessary or not, and when it is judged as disuse, a control transfer torque alone is selected, but when it is judged to be necessary, a transfer torque selecting means (f) selects the maximum value between the control transfer torque and the ambience corresponding transfer torque, and a clutch clamping force control means (g) controls the clamping force of a clutch (a).
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