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Power management system for compaction vehicles and method

A power and pressure technology, applied in the field of control strategies for power generation and management, can solve problems such as waste, considerable percentages not being used, and increased noise

Active Publication Date: 2013-09-18
CATERPILLAR PAVING PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most vehicles operating under most conditions do not fully consume the power produced by their engines
As this happens so often, a considerable percentage of the power produced by the engine goes unused and is wasted
This mode of operation results in reduced fuel economy and increased noise during operation

Method used

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  • Power management system for compaction vehicles and method
  • Power management system for compaction vehicles and method
  • Power management system for compaction vehicles and method

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Embodiment Construction

[0013] The present disclosure relates to methods and processes for optimizing the operation of a hydrostatically driven vehicle in order to reduce fuel consumption and noise while extending service life and maintenance intervals. Detects the pressure of the hydraulic system and provides it to the electronic controller. The electronic controller executes according to an optimization algorithm to produce adjustments of various engine and hydraulic system parameters. In this way, the engine can run more efficiently and at the same time provide enough power to meet the needs of the vehicle. For example, the engine can be operated at a lower engine speed and torque output when the vehicle demand is less than a maximum. More specifically, when the controller judges that the power output of the engine exceeds the power consumption of the system, the controller can provide an appropriate output signal in order to adjust the operating conditions of the engine, thereby reducing the pow...

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PUM

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Abstract

A method for managing power in a hydrostatically driven vehicle includes calculating the power consumption of the vehicle based on the pressure of the compressed fluid in a hydraulic circuit, and the displacement of the pump. An electronic controller further calculates the power output of the engine based on at least one engine operating parameter, and operates to change the power output of the engine based on a difference between the power consumption and the power output.

Description

technical field [0001] This patent disclosure relates generally to hydrostatically driven vehicles, and more particularly to control strategies for managing power production by an engine associated with such a vehicle. Background technique [0002] A typical hydrostatic drive vehicle contains an engine with an output shaft connected to one or more fluid pumps. A variable displacement fluid pump is connected to the engine through a transmission and varies its displacement to suit the power requirements of various vehicle systems. A fluid pump associated with the vehicle is connected via fluid pressure lines to a number of hydraulic motors and actuators surrounding the vehicle. For example, a vehicle may have one or more hydraulic propel motors that rotate drive wheels or rollers and move the vehicle along a floor. Additionally, a vehicle may have one or more implements that perform multiple functions. In the case of a soil compactor, the work implement may be a vibrator ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/04B60W10/06F15B11/02F15B13/02F02D29/00E02D3/02
CPCF16H61/475E02D3/074F16H2059/6861E01C19/286E01C19/28B60W10/30B60W10/06B60Y2200/413B60W30/188B60W2510/305
Inventor M·奇泽姆S·尼尔森
Owner CATERPILLAR PAVING PROD INC