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TF8 work report for 9 th EVS-GTR conference 2015.9.15 Changchun
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Works 1. Consultation in TF8 workgroup(about the applications on heavy vehicles); 2. Teleconference (about the definition of heavy vehicles and the scope of GTR); 3. Communication by e-mail.
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Opinions(OICA/JAMA) OPINION: OICA/JAMA believes a separate GTR for heavy vehicles is preferred but will consider inclusion of heavy vehicles in the EVS-GTR as an interim solution. OICA/JAMA can accept regulation to the extent of R100_02 in Phase 1 of the EVS-GTR. All additional regulatory requirements should be postponed and evaluated thoroughly from a heavy vehicle perspective in Phase 2. Additional items that must be resolved: Chapter 5 of the main EVS-GTR document should be reviewed to ensure that charging technologies used in heavy vehicles are not hindered by the current EVS-GTR wording, e.g. charging from external source under driving operation (confirmed in Phase 1, but application of regulation is postponed to Phase 2) Vehicle category definitions (>3.500 kg or 4.500 kg limit for heavy vehicles) must be clarified and agreed.
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Opinions(OICA/JAMA) Test itemsadoptionReasons and revise schemes Water immersion/water resistance Phase 2Research for specific vehicle conditions of heavy vehicles required Low energyN/AThere is no corresponding/equivalent test conditions for heavy vehicles to support regulation as proposed in the EVS-GTR. Low energy requirement could potentially be discussed from the perspective of overall electrical safety, but this would be a separate item and not to be mixed up with the passenger vehicle requirements Leakage requirements Phase 2Research for specific vehicle conditions of heavy vehicles required VibrationPhase 1, to the extent of R100_02, other/additional requirements in Phase 2 R100_02 allows flexibility to test heavy vehicle REESS according to relevant vibration conditions for the vehicle type. New vibration profile proposals require further research for specific vehicle conditions of heavy vehicles.
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Opinions(OICA/JAMA) Thermal shock and cycling Phase 1, to the extent of R100_02 Mechanical shock Phase 1, to the extent of R100_02 Requirements already exists in R100_02 so adoption to this extent is possible, however OICA/JAMA open to discuss postponing requirement to Phase 2 if China are performing or planning to perform relevant research to investigate the specific conditions of heavy vehicles Mechanical integrity N/AThere is no corresponding/equivalent test conditions for heavy vehicles to support regulation External short circuit protection Phase 1, to the extent of R100_02 Overcharge protection Phase 1, to the extent of R100_02
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Opinions(OICA/JAMA) Over discharge protection Phase 1, to the extent of R100_02 Over temperature protection Phase 1, to the extent of R100_02 Thermal propagation Phase 2Test methodology and conditions of evaluation, acceptance criteria, etc require substantial research for specific vehicle conditions of heavy vehicles required Cell/Module safety N/AIntegrated into Thermal propagation test item SOC during test: EV/PHEV and HEV Phase 1General condition of test. Fire resistance Phase 1, to the extent of R100_02 Long term test postponed to Phase 2 Exemption for vehicles with REESS higher than 1.5m from the ground in the short duration fire test as in R100_02 Research for specific vehicle conditions of heavy vehicles required Venting Phase 2Research for specific vehicle conditions of heavy vehicles required
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Opinions(China) China agree with OICA/JAMA in the definition of heavy vehicles as vehicles belong to category M,GVM>4.5t; category N, GVM>3.5t. itemsOpinion from ChinaOpinion from OICA/JAMA 1Water immersion/water resistance Research for appropriate parameters Phase 2 2Low energyempty N/A 3Leakage requirementsResearch for appropriate parameters Phase 2 4VibrationResearch for appropriate parameters Phase 1, to the extent of R100_02, other/additional requirements in Phase 2 5Thermal shock and cycling applicablePhase 1, to the extent of R100_02 6Mechanical shockResearch for appropriate parametersPhase 1, to the extent of R100_02 7Mechanical integrityemptyN/A 8 External short circuit protection applicablePhase 1, to the extent of R100_02 9 Overcharge protection applicablePhase 1, to the extent of R100_02 10 Over discharge protection applicablePhase 1, to the extent of R100_02 11 Over temperature protection applicablePhase 1, to the extent of R100_02 12 Thermal propagation applicablePhase 2 14 SOC during test: EV/PHEV and HEV applicableN/A 15 Fire resistance Applicable, but must consider the packs placed over the height 1.5m Phase 1 16 Venting Phase 2Phase 1, to the extent of R100_02 Long term test postponed to Phase 2 17 Warning Most part applicable, some adjustmentPhase 2
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Analysis 1. Water immersion/water resistance Various vehicles have Various of structure design, placement of PACKs or high voltage components, that may cause the different ability to the go through the water, and that also cause the different requirements from the passenger vehicles. Parameter set: using the height of the bottom of vehicle (PACK placed in the bottom of the vehicle) or the height of the floor board in the cab (that may be a good idea for bus or placed above that). 2.Vibration To the extent of R100, it allows flexibility to test heavy vehicle REESS according to relevant vibration conditions for the vehicle type. So it`s a task to research appropriate vibration condition. Another important task is to research about how to pick out the most representative pack from packs, maybe that could be clarified in the regulation.
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Opinions(China) 3. Low energy There is no appropriate crush regulation for heavy vehicles, so items required after a crush test is not appropriate. (An important point of regulation is measurable) 4. Mechanical integrity Post-crash requirement, empty. 5. Electrolyte leakage If this is only considered about the crash requirements, that`s not appropriate for the heavy vehicles as the item Low energy. But if it contains the situation after over-charged, vibration or mechanical shock, the component level requirement should be included (vehicle is not measurable on the item). Besides the placement of the PACK also influence on this requirement, so it couldn`t be the same, and this is also a task should be down after the conference.
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Opinions(China) 6. Over-charging protection/over-discharging protection/external short circuit protection/over-temperature protection These items are extent to R100-2, the same requirements and conditions as the passenger vehicles 7. Thermal propagation Consistent with it required on the passenger vehicles 8. SOC Consistent with it required on the passenger vehicles 9. Thermal shock and cycling Extent to R100-2, applicable. 10. Mechanical shock Extent to R100-2, applicable. The shocking parameters have been given in R100-2 for category N2,N3 and category M2,M3.
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Opinions(China) 11. Fire resistant Exemption for vehicles with REESS higher than 1.5m from the ground in the short duration fire test as in R100_2 12. Venting This item may be postpone to phase 2. This should do some research. 13. Warning strategy for driver notification and response Consistent with it required on the passenger vehicles. And in principle, there are two kinds of warning must be send out: a. That would cause an accident in driving,such as missing high voltage, losing steering assist ; b. That may cause a rapid hazard to occupants, no enough time to escape from danger.
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Opinions(China) The heavy vehicles could be added into EVS-GTR proposal as an Annex. Most items could be applicable for heavy vehicles directly or after parameter altered. But there are some research tasks should be done: 1. Depth and speed in flooding situation; 2.The placement of RESS affect the electrolyte leakage; 3.Appropriate vibration condition;
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Buses Min height : 230mm Min height : 250mm Min height : 280mm
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Flooding tests Depth :250mm Speed: 12km/h Distance: 500m coach
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Flooding tests Depth :250mm Speed: 12km/h Distance: 500m Mini bus
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Flooding tests Depth :250mm Speed: 12km/h Distance: 500m City bus
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Thank you !
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