| 摘要 |
PURPOSE:To make better the steering stability of a motorcycle with sidecar during its running, by controlling the braking force given to this machine according to the number of people aboard at the sidecar side with a pressure control valve gear. CONSTITUTION:A PCV gear 3 for pressure control is installed in the point midway in a hydraulic circuit which transmits hydraulic pressure to each of hydraulic disc brake calipers C1 and C2 in a rear wheel 1R of this machine 1 and a side wheel 2S of a sidecar 2 via a master cylinder 5 by stepping on a rear brake pedal 4. And, braking deceleration G2 in time of the sidecar 2 being empty is set to the same speed as braking deceleration G1 of this machine 1, and simultaneously when an occupant is in the sidecar 2, the PCV gear 3 is controlled according to the number of the occupants whereby the braking deceleration G1 in relation to this machine 1 can be reduced. With this constitution, since the braking deceleration G1 of this machine 1 is reduced in proportion to a reduction in the braking deceleration G2 of the sidecar 2 on the basis of weight increment due to boarding of people into the sidecar 2, thus stable steering is secured. |
