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Combined load control of the engine and hybrid system

A hybrid system and hybrid technology, applied in the field of control systems, can solve problems such as smooth torque control difficulties and overall system optimization difficulties

Active Publication Date: 2020-06-12
DEERE & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although separate control regulators can be used, one for the diesel engine limits the engine speed and one for the reversible shaft power converter limits the motor speed when either the engine or the hybrid system reaches the maximum limit Separate control regulators can cause difficulties in smooth torque control when
Furthermore, optimization of the overall system is difficult

Method used

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  • Combined load control of the engine and hybrid system
  • Combined load control of the engine and hybrid system
  • Combined load control of the engine and hybrid system

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Embodiment Construction

[0013] For the purposes of promoting an understanding of the principles of the novel invention, reference will now be made to the embodiments described herein and illustrated in the drawings and specific language will be used to describe the same. It will be understood, however, that no limitation on the scope of the novel invention is thereby intended and that alterations and further modifications in the apparatus and methods illustrated herein, as well as those further applications of the principles of the novel invention, should be regarded as It is to be understood as normally occurs to one of ordinary skill in the art to which the novel invention pertains.

[0014] figure 1 It is a side elevational view of the work vehicle 1 . The work vehicle 1 is a four wheel drive (4WD) loader having: a cab 10; a rear body section 20 with rear wheels 22; a front body section 30 with front wheels 32, a bucket 33 for A linkage 34 for operating the bucket 33 , and hydraulic cylinders 34...

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Abstract

The work vehicle includes an engine configured to provide power to drive a ground engaging traction device and a hybrid powertrain to drive the powertrain. An engine controller is operatively coupled to the engine and is configured to generate a hybrid torque command received by a hybrid powertrain controller operatively coupled to the engine controller. The hybrid powertrain controller is configured to generate an available hybrid torque signal and a desired hybrid torque signal, both of which are configured to be received by the engine controller. An engine controller generates an engine command signal configured to command the engine to operate at the commanded engine torque in response to the available mixed torque signal and the desired mixed torque signal.

Description

technical field [0001] The present invention relates generally to a control system for a vehicle having a hybrid powertrain, and more particularly to a work vehicle having a prime mover for providing power and having a shaft power converter, the shaft power The converter has energy storage for power and regenerative braking. Background technique [0002] Agricultural equipment, such as four-wheel drive loaders, tractors, or self-propelled combines, includes a prime mover to generate power to perform work, a shaft power converter, and a reversible energy store. In the case of a four wheel drive loader, for example, the prime mover is usually a diesel engine that generates power from a supply of diesel. A diesel engine drives a transmission, which moves ground-engaging traction means, such as wheels or tracks, to propel the loader, in some cases, across unformed ground used in construction. Such loaders include hydraulic machines with hydraulic pumps that can be used, for ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/06B60W10/00B60W10/24B60W20/10
CPCB60W10/00B60W10/06B60W10/24B60W20/10B60W2300/17B60W2300/18B60W2710/24B60W2710/0666B60W10/08B60W2050/0006B60W2050/0011B60W2050/0026B60W2510/0638B60W2510/246B60W2710/083B60W2710/244B60W20/11B60K6/48B60W20/13Y10S903/93Y02T10/62B60W10/10B60W10/196B60W10/26B60W2710/105E02F9/2075E02F9/2079
Inventor 托马斯·M·约翰逊迈克尔·皮弗克里斯托弗·D·特纳
Owner DEERE & CO