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Dual power electro-hydraulic motion control system

A technology of motion control and motion control devices, applied in electric braking systems, fluid pressure actuation system components, electric vehicles, etc., can solve problems such as not providing cost-effective solutions

Pending Publication Date: 2020-01-21
DANFOSS POWER SOLUTIONS II TECH AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the prior art does not provide a cost-effective and widely accepted solution to improve the operational efficiency of off-road vehicles

Method used

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  • Dual power electro-hydraulic motion control system
  • Dual power electro-hydraulic motion control system
  • Dual power electro-hydraulic motion control system

Examples

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Embodiment Construction

[0024] figure 1 is a high level schematic diagram depicting a dual power electrohydraulic actuation system 20 in accordance with the principles of the present disclosure. The dual power electrohydraulic actuation system 20 includes a dual power electrohydraulic motion control unit 22 hydraulically coupled to a hydraulic actuator 24 . The hydraulic actuator 24 is configured to convert hydraulic power to mechanical power. Exemplary hydraulic actuators 24 include linear actuators (eg, hydraulic cylinders) and rotary actuators (eg, hydraulic motors). The dual power electro-hydraulic motion control unit 22 can be powered from a hydraulic power source 30 (e.g., a hydraulic power source having a hydraulic pressure higher than tank pressure; the hydraulic pressure source can include a hydraulic accumulator and / or a hydraulic pump and / or a common pressure rail (CPR, etc.) receives and transmits power to the hydraulic power source 30 . Dual power electrohydraulic motion control unit ...

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PUM

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Abstract

The invention discloses a dual power electro-hydraulic motion control system. The present disclosure relates to a motion control unit that is capable of receiving electrical power from an electrical power source and hydraulic power from a hydraulic power source. The motion control is configured to produce a blended power output derived from the electrical and hydraulic power which can be used to power a hydraulic actuator. The motion control unit can also split hydraulic power recovered from hydraulic actuator to the electrical power source and the hydraulic power source.

Description

technical field [0001] The present disclosure generally relates to motion control systems for controlling movement of actuators, such as hydraulic cylinders. Background technique [0002] In recent years, more energy-efficient solutions for powering off-road vehicles have been explored. One example proposed solution involves integrating an electric motor into the propulsion circuit used to drive an off-road vehicle, enabling easier recuperation of braking energy. Another proposed solution involves the use of electric motors to power the swing use on large excavators so that swing braking energy can be recaptured. Both of these proposed solutions based on fuel saving calculations may have a relatively large payback time (eg, greater than 8 years) and are not widely accepted in the market. Accordingly, the prior art does not provide a cost-effective and widely accepted solution for improving the operational efficiency of off-road vehicles. Contents of the invention [000...

Claims

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Application Information

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IPC IPC(8): B60K25/10B60L7/10
CPCB60K25/10B60L7/10B60K2025/103B60K2025/106F15B21/14F15B2211/88F15B2211/761F15B2211/20569F15B2211/205F15B2211/20515F15B11/17F15B2211/212F15B2211/6658F15B2211/7053F15B2211/20561F15B2211/30525F15B2211/27
Inventor 王梦贾帕·沙赫达朗格瑞特·皮亚邦卡恩
Owner DANFOSS POWER SOLUTIONS II TECH AS