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Epicyclic reducer for a wheel hub and vehicle

A technology of epicyclic reducer and reducer, which is applied in the field of vehicles, can solve the problems of increasing fuel consumption, achieve the effect of improving fuel efficiency and eliminating hub deceleration

Active Publication Date: 2021-10-19
IVECO SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The engine needs to spin at a higher speed to drive the wheels at the same speed as the unretarded configuration, which increases fuel consumption

Method used

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  • Epicyclic reducer for a wheel hub and vehicle
  • Epicyclic reducer for a wheel hub and vehicle
  • Epicyclic reducer for a wheel hub and vehicle

Examples

Experimental program
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Embodiment Construction

[0020] Referring now to the drawings, and more particularly to figure 1 , illustrates an exemplary embodiment of a vehicle 100 formed in accordance with the present disclosure. In the illustrated embodiment, the vehicle 100 is a truck that includes a chassis 101 and a heat engine, such as an engine 102 , carried by the chassis 101 . Engine 102 may be: an internal combustion engine powered, for example, by a chemical fuel stored in a tank, such as gasoline or diesel; an electric motor powered by electrical current from a battery; or a hybrid combined output from either the internal combustion engine or the electric motor. A gearbox 103 is provided to transmit output power from the motor 102 to a rotatably coupled drive shaft 104 . Gearbox 103 may provide a first stage of reduction from motor 102 to drive shaft 104 as is well known. The drive shaft 104 is rotatably coupled to one or more half shafts 105 , 106 , for example by means of one or more differentials carried by the c...

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PUM

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Abstract

The invention relates to an epicyclic reducer for a vehicle hub that includes: a housing; a sun gear arranged in the housing that includes sun teeth and is configured for coupling to an input; a plurality of planet gears, each of which includes planet teeth meshed with some of the sun teeth; a planet carrier that couples the planet gears to each other and is configured as an output; and a ring gear that includes ring teeth meshed with some of the planet teeth of each of the planet gears. The ring gear can be moved within the housing between a reduction position in which the planet gears are configured to rotate relative to the ring gear, and a direct drive position in which the ring gear is constrained to rotate with the planet gears.

Description

Background technique [0001] The present invention relates to vehicles and in particular to epicyclic reduction gears for vehicles. [0002] Vehicles, such as trucks, are often used to tow heavy loads. Such vehicles typically include a heat engine coupled to drive wheels through a transmission. The transmission typically has a gearbox that rotatably couples the drive shaft to the engine. Half shafts for driving the wheels are rotatably coupled to the drive shafts, for example by means of one or more differentials. The half shaft turns the hub, which is connected to the wheel to rotate the wheel. This allows the rotary motor to power the wheels to spin them and move the vehicle. [0003] For trucks and other large vehicles, it is known to provide two-stage reduction in order to spin the wheels at a rotational speed lower than that of the engine and to increase the torque of the wheels. The first stage of reduction usually occurs in the gearbox. However, due to the high tor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/28F16H9/26
CPCF16H9/26F16H3/54B60K17/046B60K17/08F16H57/082F16H57/10B60Y2200/1422F16H1/28F16H3/002
Inventor 若泽·弗朗西瓦尔多·佩雷拉莱莫斯
Owner IVECO SPA