I have recently posted a video of driving my EV on YouTube. Put some music on it from local electronic music band "Mind Engineers" . Enjoy.
I am still working to make the car street legal. We had preliminary inspection with transportation experts and agreed on several main points to be done before final certification:
- Emergency disconnect "Red Button"
- Comparing information of cabin air heater element, brake booster and power steering between original components and new replacements
- Protection cover of power cables underneath the car from physical damage (stones, etc.)
- Marking on high voltage cables with with bright colour (orange or similar)
- Informing driver by sound if he's leaving a drive-active car
- Safety procedures modification for starting and running the car in accordance to EN-1987 standards
- Check the charging connector for compliance to EN IEC-62196
- Preparation of technical documentation of the modification
- Some other smaller ones
As I am the first one to go through such certification in my country it is a bit of learning curve for all of us. But I work with people who have good willing approach and we are gradually solving the problems in our way.
So I am quite busy to finalise these things and finaly get my car certified. I will update the blog with new posts of modifications as I go.
Showing posts with label Sensors. Show all posts
Showing posts with label Sensors. Show all posts
2009-09-20
Motor RPM Sensor
I have built motor RPM sensor from Melexis MLX90217 chip and door magnet. The Melexis chip was ordered from DigiKey a while ago and cylindrical magnet has taken from door magnet and reed switch pair which is used in house alarm systems.
I made an enclosure of the sensor from 30x30x2 square steel tube of approx 60mm length. I welded on the 2 mm sheet cover on one end and two holder arms with holes on other end. Then made a 14mm hole on one side and welded in a piece of steel tube. Then I glued in the magnet with MLX sensor on its end directed to the inside of the box with three short wires running out to the outside. These wires are connected to shielded microphone cable which is running from the sensor to control box. I've painted the sensor with hammered black Hammerite, let it dry for a day and attached to motor on accessory axis side. Here are couple of photos of finished sensor. Sorry - didn't have time to capture whole manufacturing process.
The sensor serves second purpose too - it covers the shaft from dirt and moisture to prevent its corrosion.
I made an enclosure of the sensor from 30x30x2 square steel tube of approx 60mm length. I welded on the 2 mm sheet cover on one end and two holder arms with holes on other end. Then made a 14mm hole on one side and welded in a piece of steel tube. Then I glued in the magnet with MLX sensor on its end directed to the inside of the box with three short wires running out to the outside. These wires are connected to shielded microphone cable which is running from the sensor to control box. I've painted the sensor with hammered black Hammerite, let it dry for a day and attached to motor on accessory axis side. Here are couple of photos of finished sensor. Sorry - didn't have time to capture whole manufacturing process.
The sensor serves second purpose too - it covers the shaft from dirt and moisture to prevent its corrosion.
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