Integrated Electro-hydraulic Machine for Off-highway Vehicle Electrification

A key enabler to electrify off-highway vehicles and improve their energy efficiency.

#This project was a major part of my Ph.D. research, and aimed to electrify off-highway vehicles using the Hybrid Hydraulic-Electric Architecture, proposed by Prof. Perry Li’s team at the University of Minnesota. This work was funded by the U.S. Department of Energy’s Vehicle Technologies Office. My work on this project involved developing the integrated electro-hydraulic machine rated at 20kW with efficiency> #85%, power-density >5kW/kg, and cost <$20/kW.

#I was mentored by my advisor Prof. Eric Severson and worked closely with the hydraulics team mentored by Prof. Jim van de Ven and Prof. Perry Li to come up with an initial design that used the axial flux machine and a radial piston pump. I then developed a multi-physics optimization framework to optimize the electro-magnetic, thermal, and hydraulic aspects of the design to meetthe performance metrics. We #identified a design that meets the performance requirements, and performed a detailed analysis. Finally a prototype was designed based on the selected design, fabricated, and experimentally characterized.

On the left, HHEA architecture. Middle, Proposed integrated electro-hydraulic machine. Right, Fabricated prototype.
This image can also have a caption. It's like magic.

You can also put regular text between your rows of images, even citations (missing reference). Say you wanted to write a bit about your project before you posted the rest of the images. You describe how you toiled, sweated, bled for your project, and then… you reveal its glory in the next row of images.

You can also have artistically styled 2/3 + 1/3 images, like these.

The code is simple. Just wrap your images with <div class="col-sm"> and place them inside <div class="row"> (read more about the Bootstrap Grid system). To make images responsive, add img-fluid class to each; for rounded corners and shadows use rounded and z-depth-1 classes. Here’s the code for the last row of images above:

<div class="row justify-content-sm-center">
  <div class="col-sm-8 mt-3 mt-md-0">
    {% include figure.liquid path="assets/img/6.jpg" title="example image" class="img-fluid rounded z-depth-1" %}
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    {% include figure.liquid path="assets/img/11.jpg" title="example image" class="img-fluid rounded z-depth-1" %}
  </div>
</div>