1. Meeting Overview Slides
SAE J2907 Performance Characterization of Electrified Powertrain Motor-Drive subSystem
Meeting Overview Slides
for
J2907 Task Force
John M. Miller
13 July 2017
Company
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2. J2907 Task Force Agenda
SAE Anti-trust Statement, Patent Disclosure, IP Policy, and Transparency Statement
Welcome
Review of the SAE Anti-Trust, Patent Disclosure, IP Statement, and Transparency Statement
Review of the Minutes from Last Meeting (11 May 2017)
Liaison Activities
Updated SAE Hybrid/EV Technical Standards Committee on 1st field trial results
J2907 RP Field Trials
TM4 HSM60 (85 kW, 10,000 rpm ETDS) completed 23 June 2017
UQM PPPro135 (135 kW, 7700 rpm ETDS) pending for late July or early August 2017
Old Business
J2907 RP mark-up copy must be original SAE document
New Business
Scheduling 2nd field test at ORNL NTRC-2 Vehicle Systems Integration Lab
Due to ORNL top management change 1 July & personnel changes no 3rd field test
Next Meeting – 2nd Thursday of each month at 2pm EST
Meetings will now focus on TIR to RP standard
SAE J2907 in committee

3. J2907 Field Trials – HSM60
ORNL DYNAMOMETER FACILITY AVL 250 kW, 12,000 rpm unit with TM4 HSM60 ETDS installed Dyno lab chiller consists of WEG loop, heat exchanger, cooling tower loop Coolant to power controller, then motor, on to heat exchanger and pump
SAE J2907 in committee

4. J2907 Draft RP Dyno Cell ORNL NTRC-2 Dyno Cell dSpace console
SAE J2907 in committee

5. J2907 Draft RP Edits
Replace Figure 4 - Example laboratory dynamometer test of ETDS functional diagram for bench dynamometer test
SAE J2907 in committee

6. J2907 Draft RP edits Initialization: 4 hour soak at 25 +/-5oC
Manufacturer specifies Udc, np, Pmax, n30, and P30max. This is more general case.
Precondition for 5 minutes at 20% max power then commence maximum power tests at speed np, np-2%, np-2%
SAE J2907 in committee

7. J2907 Field Test Results for HSM60
TM4 HSM60 results
The ORNL NTRC-2 dynamometer uses a completely closed coolant loop: 1- the WEG loop for series connected power controller and motor to heat exchanger, and 2- a city water loop closed via a high capacity cooling tower on premises. Coolant temperatures were measured by not flow.
Nominal voltage for maximum torque, maximum power, and maximum 30minute power tests: 445 Vdc
Excel file was used as a scratch pad to determine voltage, speed, and power ranges
SAE J2907 in committee

8. J2907 Field Test Results for HSM60
TM4 HSM60 Dynamometer Laboratory Graphs: Max Torque
Nominal voltage for maximum torque, maximum power, and maximum 30minute power tests: 445 Vdc
dSpace acquisition system
Max torque at 50 rpm (10s averaged value) and plot
Power = 1.463kW
Torque = Nm
SAE J2907 in committee

9. J2907 Field Test Results for HSM60
TM4 HSM60 Dynamometer Laboratory Graphs: Max Power
Nominal voltage for maximum torque, maximum power, and maximum 30minute power tests: 445 Vdc
dSpace acquisition system
4500rpm 10 sec averages
Power =
Torque =
Speed = rpm
4410rpm 10 sec averages
Power = kW
Torque = Nm
Speed = rpm
4590rpm 10 sec averages
Power = kW
Torque = Nm
Speed = rpm
SAE J2907 in committee

10. J2907 Field Test Results for HSM60
TM4 HSM60 results
Nominal voltage for maximum torque, maximum power, and maximum 30minute power tests: 445 Vdc
Excel file was used as a scratch pad to determine voltage, speed, and power ranges
SAE J2907 in committee

11. J2907 Field Test Results for HSM60
TM4 HSM60 Dynamometer Laboratory Graphs: Max 30 Minute Power
Nominal voltage for maximum torque, maximum power, and maximum 30minute power tests: 445 Vdc
dSpace acquisition system
8000rpm Max Power for 30 min
(30 points, 10sec averages)
SAE J2907 in committee

12. J2907 Field Test Results for HSM60
TM4 HSM60 Dynamometer Laboratory Graphs: Max 30 Minute Power
HSM60 production controls - unmodified
No attempt was made to compensate HSM60 controls so that dyno feedback torque would be constant.
SAE J2907 in committee

13. J2907 Field Test Results for HSM60
TM4 HSM60 Dynamometer Laboratory Graphs: Max 30 Minute Power
HSM60 production controls - unmodified
No attempt was made to compensate HSM60 controls so that dyno feedback torque would be constant.
SAE J2907 in committee

14. J2907 Field Trial Results for HSM60
Excerpts from J2907 Draft RP communications sheet
The procedure for maximum (net) power requires validation of maximum power by testing points below and above the recommended speed setting. Those results are compiled separately:
Documented test results per J2907 draft RP communications sheet
Speed
4500.7
4410.0
4590.5
np +/-2%
Torque
249.05
251.46
241.2
Pmax
117.36
116.11
115.00
Deviation
-1.07
-2.01
Acceptance 4% max deviation
Declared
Measured
Deviation (%)
Maximum torque
263 Nm 50
rpm
277
N/A
Maximum (Net) Power
114.4 kW
4500
117.36
+2.95
Maximum 30min Power
62.4
8000
64.4
+3.22
SAE J2907 in committee

15. J2907 Draft RP Edits Next Steps
Task Force review of J2907 RP edits based on 1st Field Test
Complete 2nd Field Test with UQM PP135 and updated procedure
Review 2nd Field Test with Task Force
Finalize the J2907 draft RP (only SAE copy can be updated)
Submit to SAE for balloting
SAE J2907 in committee

16. Wrap-up
Adjourn meeting at:__pm EST Next Meeting: 2nd Thursday of each month at 3pm EST
SAE J2907 in committee