Vehicle energy saving system

An energy-saving system and vehicle technology, applied in vehicle parts, mechanical equipment, transportation and packaging, etc., can solve the problem of low recovery rate of braking energy, and achieve the effects of low recovery rate, low fuel consumption, and simple structure

Active Publication Date: 2016-06-22
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a vehicle energy-saving system, which integrates the functions of the hydraulic start-stop system and the hydraul

Method used

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Embodiment Construction

[0031] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "first", "second", "third" and so on are only used for descriptive purposes, and should not be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection or an indirect connection through an intermediary. For those skilled in the art, the specific meanings of the above terms...

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Abstract

The invention relates to the technical field of vehicle energy saving, and specifically, to a vehicle energy saving system. The vehicle energy saving system comprises an engine, an energy accumulator, a variable displacement hydraulic pump/motor, a constant displacement motor, a fan, an oil tank, and a control unit. A rear torque extraction output end of the engine is connected with a rotating shaft of the variable displacement hydraulic pump/motor. The constant displacement motor is connected with the fan, and an outlet end of the constant displacement motor is connected with the oil tank. The variable displacement hydraulic pump/motor is controlled by the control unit by means of communication; the control unit controls and changes a displacement of the variable displacement hydraulic pump/motor. One hydraulic source end of the variable displacement hydraulic pump/motor is connected with an oil tank, while the other hydraulic source end of the variable displacement hydraulic pump/motor communicates with the energy accumulator and/or the constant displacement motor. The vehicle energy saving system provided by the present invention is integrated with a hydraulic start-stop system function and a hydraulic fan function, thereby leading to a balance between system energy income and expense; as a result, the problem of low braking energy recovery utilization ratio in the existing hydraulic start-stop technology is solved.

Description

technical field [0001] The present invention relates to the technical field of vehicle energy saving, in particular to a vehicle energy saving system, and more particularly to a vehicle energy saving system for buses and cleaning vehicles in urban working conditions. Background technique [0002] Buses and cleaning vehicles driving in urban conditions need to brake and stop frequently, and the cleaning vehicles have to stop at the garbage cleaning point for garbage disposal operations, which leads to an increase in fuel consumption per 100 kilometers of buses and cleaning vehicles, resulting in waste of energy. [0003] At present, the commonly used method to reduce fuel consumption due to frequent braking and parking is to use hydraulic start-stop system and / or hydraulic fan. Relevant research shows that if the hydraulic start-stop system is used, the engine is turned off when the vehicle stops, and the fuel consumption per 100 kilometers can be reduced. Reduced by about 5...

Claims

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Application Information

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IPC IPC(8): B60K25/02F02N7/00F04D25/04
CPCB60K25/02B60K2025/026F02N7/00F04D25/04
Inventor 李丕茂张朝阳张展腾张玲李云华
Owner WEICHAI POWER CO LTD
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