Assignment: Identify the sub-components of a real EV

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Jaideep

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Re: Identify the sub-components of a real EV
« Reply #30 on: February 22, 2020, 04:03:32 AM »
Assignment #2 - Identify the sub-components of a real EV.

The Electric vehicle chosen for Assignment 2 is E-Z-GO RXV ELiTE 48V

1. Does your selected EV have on-board charging?
    Yes, the E-Z-GO RXV has an onboard Fast charger.

2. What is the rated AC input voltage of the on-board charger?
    AC Input voltage range of the on-board charger used in this car is 85-265 V AC power.

3. What is the DC output voltage of the on-board charger?
    DC Output voltage range of the on-board charger used in this car is 85-265 VAC power.

4. What is the Battery pack nominal voltage?
    Nominal Voltage of the Battery Pack is 56 V with two Lithium Ion Module.

5. What type of motor is connected?
    48 V AC Motor is used in powertrain of this car which delivers 4.4 hp (3.3 kW) Continuous.

6. Is there an inverter needed in the drive unit?
    Yes, an inverter is needed in the drive unit
    • to convert DC current from battery to AC current to be used in AC Motor to drive Vehicle's propulsion system.
    • to capture energy from regenerative braking and feeding it back to the battery.

7. Is there a high voltage DC-DC converter on-board the vehicle?
    Yes, there is a DC-DC Converter in the vehicles where 12 V Accessories are connected to it.

8. What type of cooling methodology is used? - Passive air, active air, active liquid?
    Cooling methodology used in this car is Passive air-cooling and Active Liquid cooling.

9. Any other interesting observations you'd like to share?
    • Efficient Zero Maintenance Lithium Batteries with advanced Battery Management System.
    • Cost of this car is comparatively less than its competitors in golf cars.


Verified.

An interesting fact is that the motor power is rather small at 3.3kw. this is usually a power rating that you would see in electric motorcycles.

Also golf carts tend to be quite pricy, this one was listed at about 10000$

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arunesh15

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Re: Identify the sub-components of a real EV
« Reply #31 on: February 23, 2020, 11:17:17 PM »
Thanks for verifying Mr.Rajan.

Thanks again for the additional info,will keep it in mind,gotta love EVs!

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asarath.94

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Re: Identify the sub-components of a real EV
« Reply #32 on: February 24, 2020, 11:14:51 PM »
Selected EV: Tata Nexon EV.

Does your selected EV have onboard charging?
Ans: yes it does. It accepts charging from any 15A plug point and charges over it from 10%-90% in 8.5 hrs.

What is the rated AC input voltage of the on-board charger?
It takes 120/240v AC input to charge via the onboard charger.

What is the DC output voltage of the on-board charger?
Couldnt find this as the vehicle is quite new.

What is the Battery pack nominal voltage?
320v

What type of motor is connected?
The car has a 3phase permanent magnet synchronous motor

Is there an inverter needed in the drive unit?
Yes, the vehicle has a 3phase permanent magnet synchronous motor that needs AC to run.
 
Is there a high voltage DC-DC converter on-board the vehicle?
Yes.

What type of cooling methodology is used? - Passive air, active air, active liquid?
Liquid cooling is used to cool the powertrain components.

Any other interesting observations you'd like to share?
With a rather small battery pack of 30.2kwh Tata claims a 312km range which is quite impressive. But the real-world stats might vary.

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Soumic

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Re: Identify the sub-components of a real EV
« Reply #33 on: March 25, 2020, 09:58:50 AM »
Dear Sir/Madam,

Please find below reply to the answers as requested through the assignment.

1. Does your selected EV have on-board charging?

Yes!Hyundai KONA has on board charging.

2. What is the rated AC input voltage of the on-board charger?

The Hyundai Kona Electric is fitted with a 7.2 kW on-board charger for Type 2 AC charging, in addition to rapid 50 kW DC capability.

3. What is the DC output voltage of the on-board charger?

DC Output voltage of the on board charger is 77kW.

4. What is the Battery pack nominal voltage?

Nominal voltage for each cell at 3.7V with a configuration of 96 cell(3.7x96=356V).

5. What type of motor is connected?

Hyundai KONA Electric powertrain employs a high-efficiency 150-kW (201 hp) permanent-magnet synchronous electric motor supplied by a high-voltage 64-kWh lithium-ion battery. The motor develops 291 lb-ft of torque distributed to the front wheels.

6. Is there an inverter needed in the drive unit?

Yes for converting AC to DC.

7. Is there a high voltage DC-DC converter on-board the vehicle?

Yes there is a high voltage DC-DC converter on-board the vehicle.

8. What type of cooling methodology is used? - Passive air, active air, active liquid?

Hyundai KONA uses active liquid cooling methodology.

Any other interesting observations you'd like to share?

The Hyundai Kona Electric is fitted with a 7.2 kW on-board charger for Type 2 AC charging, in addition to rapid 50 kW DC capability.

Thanks & Regards

Soumic

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aditya_shri

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Re: Identify the sub-components of a real EV
« Reply #34 on: April 09, 2020, 11:08:11 AM »
Aditya Shrivastava

Hyundai Kona EV

1. Does your selected EV have on-board charging?
A- Yes, it has on-board charging.

2. What is the rated AC input voltage of the on-board charger?
A-120V

3. What is the DC output voltage of the on-board charger?
A-

4.What is the Battery pack nominal voltage?
A- 356V

5. What type of motor is connected?
A- PMSM

6. Is there an inverter needed in the drive unit?
A- Yes, before motor for converting DC to AC.

7. Is there a high voltage DC-DC converter on-board the vehicle?
A- Yes, for fast charging it is present.

8. What type of cooling methodology is used? - Passive air, active air, active liquid?
A- Active liquid

9. Any other interesting observations you'd like to share?
A- Fast charging just takes 57 minutes for 0-80%

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Nakkela Hari

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Re: Identify the sub-components of a real EV
« Reply #35 on: April 18, 2020, 02:58:42 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.

Does your selected EV have on-board charging?
A) Tigor EV

What is the rated AC input voltage of the on-board charger?
A) BEVC-AC001 - 230V

What is the DC output voltage of the on-board charger?
A) BEVC-DC001 - 48/64/72 @ 15kW DC Power (Not known exact voltage).

What is the Battery pack nominal voltage?
A)  Voltage should be around 48/64/72V. (no information found).

What type of motor is connected?
A) 72 V 3-Phase AC Induction Motor

Is there an inverter needed in the drive unit?
A) Yes, to convert DC Power to 3-Phase AC Power to drive 72V, AC Induction Motor.

Is there a high voltage DC-DC converter on-board the vehicle?
A) Yes, there should be on DC-DC converter, to convert AC Power to DC Power when charging using - BEVC-AC001

What type of cooling methodology is used? - Passive air, active air, active liquid?
A) no information found.

Any other interesting observations you'd like to share?
A) 72V, 3-Phase Induction motor used,
Max. Power (kW @ r/min)30 kW @ 4500 r/min
Max. Torque (Nm @ r/min)105 Nm @ 2500 r/min
Battery Capacity (kWh) - 21.5
TransmissionSingle Speed, Automatic
Normal Charging Time (0%-100%)11.5 hrs
Fast Charging Time (0%-80% with 15 kW charger)2 hrs
Max Speed (km/h)80


Report and post your findings on the forum on the following subtopic.
Nakkela. Hari,
MTech(Control System).
+91 9177018213

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Arjun Muralidharan

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Re: Identify the sub-components of a real EV
« Reply #36 on: April 19, 2020, 07:07:24 AM »
Selected EV : Hyundai Kona EV(MY20)

Does your selected EV have on-board charging?
Ans) Yes, it has Onboard charging

What is the rated AC input voltage of the on-board charger?
Ans) 240V is the Rated input voltage ( for 9.5 hours charging)

What is the DC output voltage of the on-board charger?
Ans) 480V DC fast charging: 80% in 75 minutes or less. Charging time based on 50kW DC charging

What is the Battery pack nominal voltage?
Ans) For the Electric 39kWh it is : 319V
For the Electric 64kWh it is : 356V

What type of motor is connected?
Ans) Permanent Magnet Synchronous Motor(PMSM)

Is there an inverter needed in the drive unit?
Ans) Yes, it is needed. Since Motor is Run by AC, to convert Battery voltage DC to motor run AC.
Invertor convert: DC Voltage to AC Voltage

Is there a high voltage DC-DC converter on-board the vehicle?
Ans) Yes, Since fast charging is Available for this model.

What type of cooling methodology is used? - Passive air, active air, active liquid?
Ans) It uses Active Liquid Cooling Methodology

Any other interesting observations you'd like to share?
Ans)
Motor Spec (For 64Kwh):
Max Power: 150kW
Max torque: 395Nm
Top speed:  104mph
High Voltage Battery Spec:
Battery type:          Lithium Battery
Battery Power:     170kW
Battery Capacity: 64kWH/Ah
Voltage:                  356V
ON BOARD CHARGER: 10.5kW spec.





Report and post your findings on the forum on the following subtopic.
[/quote]
@#$_&

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Jaideep

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Re: Identify the sub-components of a real EV
« Reply #37 on: April 20, 2020, 02:13:11 PM »
Selected EV: Tata Nexon EV.

Does your selected EV have onboard charging?
Ans: yes it does. It accepts charging from any 15A plug point and charges over it from 10%-90% in 8.5 hrs.

What is the rated AC input voltage of the on-board charger?
It takes 120/240v AC input to charge via the onboard charger.

What is the DC output voltage of the on-board charger?
Couldnt find this as the vehicle is quite new.

What is the Battery pack nominal voltage?
320v

What type of motor is connected?
The car has a 3phase permanent magnet synchronous motor

Is there an inverter needed in the drive unit?
Yes, the vehicle has a 3phase permanent magnet synchronous motor that needs AC to run.
 
Is there a high voltage DC-DC converter on-board the vehicle?
Yes.

What type of cooling methodology is used? - Passive air, active air, active liquid?
Liquid cooling is used to cool the powertrain components.

Any other interesting observations you'd like to share?
With a rather small battery pack of 30.2kwh Tata claims a 312km range which is quite impressive. But the real-world stats might vary.

Verified. Indeed 30.2kwh is a very small pack. 312km of range probably means that the motor power isn't very high.

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Jaideep

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Re: Identify the sub-components of a real EV
« Reply #38 on: April 20, 2020, 02:15:52 PM »
Dear Sir/Madam,

Please find below reply to the answers as requested through the assignment.

1. Does your selected EV have on-board charging?

Yes!Hyundai KONA has on board charging.

2. What is the rated AC input voltage of the on-board charger?

The Hyundai Kona Electric is fitted with a 7.2 kW on-board charger for Type 2 AC charging, in addition to rapid 50 kW DC capability.

3. What is the DC output voltage of the on-board charger?

DC Output voltage of the on board charger is 77kW.

4. What is the Battery pack nominal voltage?

Nominal voltage for each cell at 3.7V with a configuration of 96 cell(3.7x96=356V).

5. What type of motor is connected?

Hyundai KONA Electric powertrain employs a high-efficiency 150-kW (201 hp) permanent-magnet synchronous electric motor supplied by a high-voltage 64-kWh lithium-ion battery. The motor develops 291 lb-ft of torque distributed to the front wheels.

6. Is there an inverter needed in the drive unit?

Yes for converting AC to DC.

7. Is there a high voltage DC-DC converter on-board the vehicle?

Yes there is a high voltage DC-DC converter on-board the vehicle.

8. What type of cooling methodology is used? - Passive air, active air, active liquid?

Hyundai KONA uses active liquid cooling methodology.

Any other interesting observations you'd like to share?

The Hyundai Kona Electric is fitted with a 7.2 kW on-board charger for Type 2 AC charging, in addition to rapid 50 kW DC capability.

Thanks & Regards

Soumic

Verified. Everything is correct.

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Jaideep

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Re: Identify the sub-components of a real EV
« Reply #39 on: April 20, 2020, 02:17:20 PM »
Aditya Shrivastava

Hyundai Kona EV

1. Does your selected EV have on-board charging?
A- Yes, it has on-board charging.

2. What is the rated AC input voltage of the on-board charger?
A-120V

3. What is the DC output voltage of the on-board charger?
A-

4.What is the Battery pack nominal voltage?
A- 356V

5. What type of motor is connected?
A- PMSM

6. Is there an inverter needed in the drive unit?
A- Yes, before motor for converting DC to AC.

7. Is there a high voltage DC-DC converter on-board the vehicle?
A- Yes, for fast charging it is present.

8. What type of cooling methodology is used? - Passive air, active air, active liquid?
A- Active liquid

9. Any other interesting observations you'd like to share?
A- Fast charging just takes 57 minutes for 0-80%

Verified. Another important point is that fast charging generally reduces the long term life of battery pack.

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Jaideep

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Re: Identify the sub-components of a real EV
« Reply #40 on: April 20, 2020, 02:26:21 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?
A) Tigor EV

What is the rated AC input voltage of the on-board charger?
A) BEVC-AC001 - 230V

What is the DC output voltage of the on-board charger?
A) BEVC-DC001 - 48/64/72 @ 15kW DC Power (Not known exact voltage).

What is the Battery pack nominal voltage?
A)  Voltage should be around 48/64/72V. (no information found).

What type of motor is connected?
A) 72 V 3-Phase AC Induction Motor

Is there an inverter needed in the drive unit?
A) Yes, to convert DC Power to 3-Phase AC Power to drive 72V, AC Induction Motor.

Is there a high voltage DC-DC converter on-board the vehicle?
A) Yes, there should be on DC-DC converter, to convert AC Power to DC Power when charging using - BEVC-AC001

What type of cooling methodology is used? - Passive air, active air, active liquid?
A) no information found.

Any other interesting observations you'd like to share?
A) 72V, 3-Phase Induction motor used,
Max. Power (kW @ r/min)30 kW @ 4500 r/min
Max. Torque (Nm @ r/min)105 Nm @ 2500 r/min
Battery Capacity (kWh) - 21.5
TransmissionSingle Speed, Automatic
Normal Charging Time (0%-100%)11.5 hrs
Fast Charging Time (0%-80% with 15 kW charger)2 hrs
Max Speed (km/h)80


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

Verified

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Jaideep

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Re: Identify the sub-components of a real EV
« Reply #41 on: April 20, 2020, 02:28:45 PM »
Selected EV : Hyundai Kona EV(MY20)

Does your selected EV have on-board charging?
Ans) Yes, it has Onboard charging

What is the rated AC input voltage of the on-board charger?
Ans) 240V is the Rated input voltage ( for 9.5 hours charging)

What is the DC output voltage of the on-board charger?
Ans) 480V DC fast charging: 80% in 75 minutes or less. Charging time based on 50kW DC charging

What is the Battery pack nominal voltage?
Ans) For the Electric 39kWh it is : 319V
For the Electric 64kWh it is : 356V

What type of motor is connected?
Ans) Permanent Magnet Synchronous Motor(PMSM)

Is there an inverter needed in the drive unit?
Ans) Yes, it is needed. Since Motor is Run by AC, to convert Battery voltage DC to motor run AC.
Invertor convert: DC Voltage to AC Voltage

Is there a high voltage DC-DC converter on-board the vehicle?
Ans) Yes, Since fast charging is Available for this model.

What type of cooling methodology is used? - Passive air, active air, active liquid?
Ans) It uses Active Liquid Cooling Methodology

Any other interesting observations you'd like to share?
Ans)
Motor Spec (For 64Kwh):
Max Power: 150kW
Max torque: 395Nm
Top speed:  104mph
High Voltage Battery Spec:
Battery type:          Lithium Battery
Battery Power:     170kW
Battery Capacity: 64kWH/Ah
Voltage:                  356V
ON BOARD CHARGER: 10.5kW spec.





Report and post your findings on the forum on the following subtopic.
[/quote]

Verified.

An important conclusion here is that any kind of EV over a certain power rating will always have liquid cooling. Air cooling is no longer viable. The same fact is also observed in IC engine cars.

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anand sing lollbeeharry

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Re: Assignment: Identify the sub-components of a real EV
« Reply #42 on: April 23, 2020, 02:00:49 AM »
Q 1: Does your selected EV have on-board charging ?
Answer: Yes it has on-board charger.
Q 2: What is the input voltage of the on-board charger?
Answer: In Mauritus it is 240 V.
Q 3: What is the Dc output voltage of the on-board charger?
Answer: The on-board charger DC output voltage must be higher than the Battery pack voltage.
Q 4: What is the Battery pack nominal voltage?
Answer: The nominal voltage is 352.4 V.
Q 5: What type of motor is connected?
Answer: A Permanent Magnet Synchronous Motor (PMSM) is connected (Max. Power 136 ps & Torque 40.27 kgm).
Q 6: Is there an inverter needed in the drive unit?
Answer: yes DC to AC from battery to Traction Motor.
Q 7: Is there a high voltage DC-DC converter on-board the vehicle?
Answer: No there isn't high DC-DC converter. In fact we have a low voltage DC-DC converter to charge the 12v battery. 
Q 8: What type of cooling Methodology is used? - Passive air, active air, active liquid?
Answer: Active liquid cooling methodology is used.
Q 9: Any other interesting observations you'd like to share?
I will drop my observations in the future.
« Last Edit: April 25, 2020, 10:51:55 AM by Akshay »

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ram keshav

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Re: Assignment: Identify the sub-components of a real EV
« Reply #43 on: April 25, 2020, 06:36:52 AM »
1)Does your selected EV has on -board charging?
 answer:Yes !!!Hyundai kona has on -board charging.
2)what is the rated input voltage of On-board charger?
answer:It takes 240V AC input of ON -board charger.
3)what is the DC output voltage of ON-board charger?
answer:The Hyundai Kona is fitted with 7.2KW On-board charger for type-2 AC charging. in addition to rapid 50 kW DC capability.
4)What is the Battery pack nominal voltage?
answer:Battery pack nominal voltage for Hyundai kona is 327V.
5)What type of motor is connected?
answer:Permanent Magnet Synchronous Motor(PMSM) .SPEC:(MAX POWER:136PS,MAX TORQUE:40.27Kgm)
6)Is there an inverter needed in the drive unit?
answer:Yes,convert dc output voltage from battery to supply AC PMSM motor.
7)Is there a high voltage DC-DC converter on-board the vehicle?
answer:Yes
8)What type of cooling methodology is used?
answer:Active liquid cooling is employed here.
9)Any other interesting observations you'd like to share?
      i)   it has highest electric driving range(312km and 482km ).
      ii)  using a 50kW DC fast charger, the Kona’s lithium-ion battery pack can be charged up to 80% in 57 minutes for the long range. With a standard AC socket, it takes around 6 hours 10 minutes for the short range.

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taurai

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Re: Assignment: Identify the sub-components of a real EV
« Reply #44 on: April 28, 2020, 09:37:30 PM »
1. Does your selected EV have on-board charging?
yes

2.What is the rated AC input voltage of the on-board charger?
120v/240v dual option

3.What is the DC output voltage of the on-board charger?
400v

4.What is the Battery pack nominal voltage?
356v

5.What type of motor is connected?
3 phase Ac permanent magnet synchronous motor.

6.Is there an inverter needed in the drive unit?
yes to invert high voltage Dc to 3 phase AC

7.Is there a high voltage DC-DC converter on-board the vehicle?
yes

8.What type of cooling methodology is used? - Passive air, active air, active liquid?
Active liquid cooling.

9.Any other interesting observations you'd like to share?
 Electric Power Control Unit (EPCU)
Electric Power Control Unit (EPCU) optimizes control of the vehicle performance and provides a pleasant driving experience with reliable control of the DC/AC inverter to drive the electric motor as well as the low voltage DC-DC converter to supply power to its electronic components.