ElectroClassic EV
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Archive for the ‘Electrification’ Category

Cell Swap

February 23, 2015

Since our encounter with the median on Coast Highway requiring AAA to flatbed us home, I noticed some strange drops in the pack’s state-of-charge, sometimes falling up to 10% in an instant. I called Orion to discuss the issue, and they requested some cell data logs. You generate them by driving around with a laptop running the Orion utility, connected to […]

Charging Ahead

January 26, 2015

My current charging routine involves popping the hood, pulling out the charging cable, snaking it to and through the back door, plugging into the 120 VAC outlet in the laundry room, returning outside to flip on the charging cable switch box, and then finally retiring inside for dinner. All that back-and-forth is getting old. What I […]

Throttle Back

March 19, 2014

Recently, I began experiencing hiccups in the main drive power stream. My console display indicated the motor current was randomly spiking up and down, even when I tried to hold a steady cruising speed. The motor also started fluttering during slow acceleration in low gear. After perusing the EV forums, I decided my throttle had […]

Getting Good Console

March 18, 2013

Here is the Samsung Galaxy Tab 2 seven inch tablet that I picked up from Best Buy at a $20 discount. It was a backlogged holiday husband gift that I finally redeemed after 3 months. As you can see above, I am setting up the Android Torque app per the instructions on the Ewert Energy […]

Torque My Console

February 25, 2013

I’m having lots of fun driving the little electric 914 around town – to work, to the store, to meetings, to visit friends, to movies and to restaurants. I always daydreamed about converting a gas vehicle to electric, but I never thought it would actually come to pass. I’m growing accustomed to the novelty, but […]

In the CAN

January 13, 2013

CAN stands for Controller Area Network, which is a protocol adopted by the auto industry to allow micro-controllers and other devices in a vehicle to communicate with each other. Shown above is a CAN adapter sold by Ewert Energy Systems that lets the Orion BMS communicate with a computer. Data flows from the Orion’s CAN […]

Battery Management Rethunk

January 13, 2013

With the batteries less than fully charged, my lovely wife and I headed toward Pasadena to visit friends. Even though the pack was not full, it had spent the entire previous night soaking up electrons, so I wasn’t particularly worried. The drive is only about 25 percent of my projected range, and the needle on […]

In the Balance

December 6, 2012

Battery chemistry is a mysterious and arcane science that dates back to ancient Iraq, where theory holds that the Baghdad Battery was used to electroplate gold onto silver and possibly used to power ancient light bulbs. Of all the subject matter I’ve grappled with during this EV conversion project, battery technology has been the most […]

Balancing Act

September 28, 2012

Having a well-balanced pack has a direct bearing on how much range and longevity is possible from your batteries. Out of the box, all cells should theoretically have the same factory charge, but that is usually the exception. The end user should always insure a good initial state of balance before putting the pack into […]

Baby’s First Charge

August 21, 2012

Most people generally assume an EV charging station is a battery charger, when in reality, the charger is located inside the car. The charging station at your local mall simply delivers 240 volts to your car through a standard J1772 plug, and the battery charger in your EV does the hard work. It’s great for […]