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Thank you very much for the response.I will check on that.
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Foundation of EV Q&A / Re: Assignment: Identify the sub-components of a real EV
« Last post by jameel on July 28, 2020, 10:42:47 PM »
Following the lectures in which you learned about identifying sub-components of a real EV. It's your turn now - using pictures, videos or an actual electric vehicle identify the following sub-components and answer these questions.

If you don't have an example in mind, you can use the Hyundai Kona EV for this assignment. Some pictures are attached for your reference.

Does your selected EV have on-board charging?
What is the rated AC input voltage of the on-board charger?
What is the DC output voltage of the on-board charger?
What is the Battery pack nominal voltage?
What type of motor is connected?
Is there an inverter needed in the drive unit?
Is there a high voltage DC-DC converter on-board the vehicle?
What type of cooling methodology is used? - Passive air, active air, active liquid?
Any other interesting observations you'd like to share?


Report and post your findings on the forum on the following subtopic.

Hello Friends ,

This With referring to Assignment #2 Identify the Sub Component of a real EV.
Here I have attached work , I did.
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Hello Jameel, great work on the presentation. It's great that you were able to do the assignment on both an electric scooter as well as an electric car.

Could you please move your response to the following thread (https://makermax.ca/forum/index.php?topic=58.0) along with the other responses to this assignment.

Thank you!

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Hello Vaishnavi, if you'd like to get into the quality assurance or testing teams for Electric Vehicle projects - I'd recommend getting familiar with HIL (Hardware-in-loop) testing systems and then later on progressing to SIL (Software-in-loop) testing. These are the most widely used. In terms of programming languages, having an understanding of C/C++ and Python for scripting is very useful.

Example of HIL system - https://www.ni.com/en-us/innovations/automotive/hardware-in-the-loop.html
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What is the sought after skillsets and scripting languages used widely in the Automotive
industry by Electric vehicle testers? Could you please give your insights.

I have got 3.5 years of experience as a tester in the Automotive domain(IPC tester). Now I am kind of lost and not sure how to upskill myself.

Currently, I have very few skillsets like,
Manual testing
Requirement analysis
CAPL scripting and
ISTQB certification
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Foundation of EV Q&A / Assignment #2 - Identify the sub-components of a real EV
« Last post by jameel on July 26, 2020, 08:50:45 AM »
Dear Friends Hello,

Hope all are doing well in this pandemic situation.

Here I have attached PPT of sub component of a real EV.

Jameel
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Foundation of EV Q&A / Re: Assignment: Identify the sub-components of a real EV
« Last post by hiten on July 19, 2020, 10:57:04 AM »
Following the lectures in which you learned about identifying sub-components of a real EV. It's your turn now - using pictures, videos or an actual electric vehicle identify the following sub-components and answer these questions.

If you don't have an example in mind, you can use the Hyundai Kona EV for this assignment. Some pictures are attached for your reference.

I've referred to the pictures of Hyundai Kona EV for this assignment.
Does your selected EV have on-board charging? Yes
What is the rated AC input voltage of the on-board charger?
What is the DC output voltage of the on-board charger?
What is the Battery pack nominal voltage? 352.4V
What type of motor is connected? Permanent magnet synchronous motor
Is there an inverter needed in the drive unit? Yes, to convert DC voltage to AC voltage
Is there a high voltage DC-DC converter on-board the vehicle? No
What type of cooling methodology is used? - Passive air, active air, active liquid? Active liquid
Any other interesting observations you'd like to share?


Report and post your findings on the forum on the following subtopic.
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Foundation of EV Q&A / Re: Assignment: Identify the sub-components of a real EV
« Last post by zaidtalab on July 19, 2020, 03:20:49 AM »
Assignment #2
EV subcomponents
Study of TATA Nexon EV

Q. Does your selected EV have on-board charging?
A.  Yes, to convert the AC Supply from external wall charger into DC. Normal charger type I is used of 120V/15A plug point.

Q.  What is the rated AC input voltage of the on-board charger?
A.  The rated AC input voltage is 120V for level I charger.

Q.  What is the DC output voltage of the on-board charger?
A.  DC output voltage of OBC has to be greater than battery pack nominal voltage that is greater than 320V or less than 400V. OBC has rated power of 3.3Kw AC.

Q. What is the Battery pack nominal voltage?
A. Polymer Lithium ion battery pack used. It is rated at 320V. Power of 30.2 Kwhr.

Q. What type of motor is connected?
A. Liquid cooled commutator less AC Permanent Magnet Synchronous Motor is used. Power of 129 PS and torque of 245Nm.

Q. Is there an inverter needed in the drive unit?
A. Yes, since the DC supply has to be converted to AC for the PMSM to operate the electric motor and drive the wheels.

Q.  Is there a high voltage DC-DC converter on-board the vehicle?
A.  Yes,  to convert the HV DC from 320 Volts traction battery and to charge the auxiliary lead acid battery of 12 Volts. To power the peripherals electronics like power windows, head lamps, indicators, wipers, brake lights, etc.

Q.  What type of cooling methodology is used? - Passive air, active air, active liquid?
A.  Active liquid coolant is needed to cool and dissipate heat away from Motors, battery, other sub components etc. Coolant circulated through black tubes through the Li-Ion battery pack.

Q. Any other interesting observations you'd like to share?
A. It is a front wheel drive EV with Ziptron technology single speed transmission.
It has 300kms range on a single  charge.
It has two charge options CCS2 charger Level I regular charge in 8 hrs, and DC fast charging charges in 60 mins.
Battery used is IP67 Std water resistant upto 1 meter or 30 mins.
High voltage lines are orange color cables.
Weight of battery pack is 1400kgs located in middle bottom of chassis.

Best Regards,
Zayd R

Report and post your findings on the forum on the following subtopic.
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Foundation of EV Q&A / Re: Guidelines for posting on the forums
« Last post by Akshay on July 18, 2020, 04:34:23 PM »
Hello Zayd,

Thanks for posting. You've got the post in an incorrect topic. I recommend moving it to the assignment related topic linked below.

https://makermax.ca/forum/index.php?topic=58.0

Thanks.
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Foundation of EV Q&A / Re: Guidelines for posting on the forums
« Last post by zaidtalab on July 18, 2020, 04:25:08 AM »
EV sub components
Hi Akshay,
 TATA Nexon EV sub components
1. Yes Nexon has an OBC on board charger with rating 3.3kw AC
2. The rated AC input voltage of OBC is
3.3 kw AC
3. The DC output volt of OBC is not mentioned though it has to be greater than the battery pack voltage for it to charge. 
4. Battery pack nominal voltage is 320V produces 30.2Kwhr power. 
5. Drive motor used is permanent magnet synchronous motor produces 129PS Power and 245Nm torque and is liquid cooled.
6. Yes an inverter is used to convert DC to 3 ph AC to power the induction motor to turn for power transmission to the front wheel drive.
7. Yes a high volt DC-DC converter is present to charge auxiliary battery of 12 volts to operate other accessories.
8. Active liquid cooling is used to cool the motor and it's sub components
9. Other interesting observations are
Charges with 15A current Plug point
Fast charging in 60 mins and normal charging in 8hrs options available.
Range is 300+kms


 
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