초록 ▼

A vehicle has a forward mounted primary gasoline engine operatively engaged with the front axle and its associated wheels. The vehicle also has a rear mounted second motor drivingly engaged with the rear axle which is normally a dead axle. The rear axle is selectively drivingly engageable with the r

A vehicle has a forward mounted primary gasoline engine operatively engaged with the front axle and its associated wheels. The vehicle also has a rear mounted second motor drivingly engaged with the rear axle which is normally a dead axle. The rear axle is selectively drivingly engageable with the rear wheels which can overrun the rear axle in both the forward and reverse directions. The second motor is preferably an electric motor operable in two directions but alternatively may be a hydraulic pump/motor. The second motor, which may be driven by the primary motor or from an independent power source such as a battery, is manually actuable by the vehicle operator and automatically disengageable upon reaching a predetermined speed.

대표청구항 ▼

A vehicle comprising: a first wheel and a first axle adapted for operative driving engagement with said first wheel; an internal combustion engine adapted for operative driving engagement with said first axle; generating means driven by said internal combustion engine; a battery adapted to be charge

A vehicle comprising: a first wheel and a first axle adapted for operative driving engagement with said first wheel; an internal combustion engine adapted for operative driving engagement with said first axle; generating means driven by said internal combustion engine; a battery adapted to be charged by said generating means; a second wheel, a second axle said second wheel being selectively rotatable relative to said second axle and means for selectively drivingly engaging said second axle with said second wheel; an electric motor drivingly engaged with said second axle and selectively drivingly engageable with said second wheel through said second axle upon actuation of said electric motor, said electric motor drivingly connected to said battery; and means for selectively actuating and deactuating said electric motor.