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 Logo Here

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

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

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

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

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

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

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 = 277.033 Nm SAE J2907 in committee

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 = 116.611 Torque = 247.451 Speed = 4500.1 rpm 4410rpm 10 sec averages Power = 115.981 kW Torque = 251.146 Nm Speed = 4409.9 rpm 4590rpm 10 sec averages Power = 115.255 kW Torque = 239.786 Nm Speed = 4589.9 rpm SAE J2907 in committee

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

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

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

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

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

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

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