Axle Drive

Axle Drive

 

a mechanism used in motor vehicles to transfer and increase the torque from a drive shaft to a vehicle’s powered wheels and, consequently, to increase its tractive force.

An axle drive transmits the rotation of a drive shaft through an angle of 90° to semiaxles. Most axle drives employ single or double gears and pinions. In a single gear and pinion unit the rotation is transferred from a small bevel gear to a large one. In addition to the bevel gear and pinion, whose axles are mutually linked, some passenger vehicles and a number of trucks employ a hypoid gear. In a double gear and pinion unit the rotation is transmitted through two pairs of pinions: the rotation of a small bevel pinion is transmitted through a large bevel gear and on from a small cylindrical gear to a large cylindrical gear. A double gear and pinion unit may be used to obtain a high gear ratio from a comparatively small axle drive since two pairs of gears are meshed. Some trucks have more complex axle drive featuring two gear ratios and a mechanism for shifting between them.

References in periodicals archive ?
When coasting or at low load, it's front axle drive.
For the front axle drive, GKNs technical showcase harnesses the donor cars 280 kW (381 PS) four-cylinder powertrain, and integrates a mechanical Twinster unit directly to the gearbox, replacing the final drive and differential.
To support the trend, Bosch is readying several new products, including an integrated electric axle drive, 48-volt battery technology, brushless electric motor actuator and a thermal management system.
Going further, replacing traditional axle drive systems with wheel hub motors brings efficiency to the independent control of the wheel torque with fast and accurate actuation [1].
A yaw rate stability control system is designed for a hybrid electric vehicle with electric rear axle drive (ERAD) and a "hang on" center coupling device which can couple the front and rear axles for AWD capabilities.
This is helpful if one wheel is in the air, since full axle drive torque is sent to the wheel that has grip.
Yet despite the craze for tall, upright vehicles with twin axle drive, not everyone wants or can afford a big off-roader when 99.
Under the terms of the agreement, Dana will assume full ownership of AIL's axle drive head and final axle-assembly operations.
It debuts alongside the Cayenne S Hybrid, the first production hybrid in the history of Porsche, and the 911 GT3 R Hybrid, which is the first racing car from the Stuttgart marque with electric front axle drive and a flywheel energy reservoir.
It might have electric rear axle drive and is likely to be lighter and far more fuel efficient than anything we've seen before from Land Rover.
The car features an electr cal front axle drive with two electric motors supplementing a four-litre 'boxer' engine at the rear to provide four wheel drive.