Self-propelled vehicle with four-wheel drive and speed regulating device

A four-wheel drive, adjusting device technology, applied in the field of agricultural vehicles or earth-moving vehicles

Inactive Publication Date: 2019-12-03
ARBOS GRP SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] This problem is acute when the operator making a turn on this type of vehicle applies the rear right or left rear wheel brake to decelerate the wheel adjacent to the instantaneous center of rotation to reduce the turning radius

Method used

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  • Self-propelled vehicle with four-wheel drive and speed regulating device
  • Self-propelled vehicle with four-wheel drive and speed regulating device
  • Self-propelled vehicle with four-wheel drive and speed regulating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] refer to figure 1 , figure 2 and image 3 , numeral 1 generally denotes a self-propelled vehicle with four-wheel drive, such as an agricultural vehicle, an earth-moving vehicle or an off-road vehicle.

[0055] The vehicle 1 comprises a chassis 5 defining a longitudinal axis X, for example substantially parallel to the normal direction of travel.

[0056] A steered first axle 10 of the vehicle 1 is fixed to the chassis 5 , eg at the front of the vehicle 1 , or in a vehicle section oriented in the normal forward direction of the vehicle.

[0057] The vehicle 1 comprises a steered first pair of wheels 15 , ie a steered pair of front wheels 15 , articulated to the first axle 10 by suitable steering linkage 20 . Each wheel 15 of the first pair 15 is rotatably associated with a respective steering linkage 20 according to respective axes of rotation W1 and W2 lying substantially in a plane parallel to the supporting ground of the vehicle itself.

[0058] The steering lin...

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Abstract

A self-propelled vehicle with four-wheel drive provided with: a first steering axle to which is connected a first pair of wheels of the vehicle, which are kinematically connected to each other by means of a first differential, a second axle to which is connected a second pair of wheels of the vehicle, which are kinematically connected to each other by means of a second differential, an engine provided with an output shaft, and a transmission assembly connected to the output shaft of the engine. Wherein the transmission assemblycomprises: a gearbox connected to the output shaft of the engine, aprimary shaft able to transmit motion from an output shaft of the gearboxto the second pair of wheels, and a secondary shaft able to transmit motion from the output shaft of the gearbox to the firstdifferential and provided with a first segment connected to the output shaft and a second segment connected to the first differential. The transmission assembly comprises: a speed regulating device interposed between the first segment and the second segment of the secondary shaft and an electronic control unit operatively connected to the regulating device, the regulating device being configured to change a value of the ratio between the angular velocity of the second segment and the angular velocity of the first segment at least as a function of an activation signal sent by the electronic control unit.

Description

technical field [0001] The invention relates to a self-propelled vehicle with four-wheel drive, in particular to an agricultural vehicle or earth-moving vehicle with four-wheel drive. Background technique [0002] It is well known that agricultural and / or earth-moving vehicles are provided with four-wheel drive, that is, with a gearbox assembly allowing the transmission of the driving force generated by an engine mounted on the vehicle to two pairs of wheels, of which at least one The wheels are steerable wheels. [0003] The gearbox assembly includes: a gearbox, connected to the engine; a main shaft, connected to the output shaft of the gearbox; and a countershaft, also connected to the output shaft of the gearbox. Among other things, the main shaft is capable of transmitting drive torque to a pair of non-steering wheels, such as the rear wheels. The countershaft is capable of transmitting drive torque to a pair of steered wheels, such as the front wheels. [0004] Typic...

Claims

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Application Information

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IPC IPC(8): B60K17/16F16H48/11
CPCB60K17/16F16H48/11B60K5/02B60K17/344B60K17/3462B60K23/0808B60K2005/003B60K2023/0825B60K2023/0858B60W2540/18B60Y2200/22B60Y2200/221F16H3/50F16H2200/0034F16H2200/2005F16H2200/2035
Inventor克劳迪奥·贝纳西
OwnerARBOS GRP SPA