The Power Performance and the Fuel Economy Estimation of HV for Vehicle Concept Planning Using VHDL-AMS Full Vehicle Simulation Toyota Motor Corporation

Format:

Conference/Event

Author/Creator:

Tsuji, Tsuji, author.

Contributor:

Abe, Takashi

Kato, Toshiji

Kido, Yasunari

Conference Name:

SAE 2012 World Congress & Exhibition (2012-04-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

In order to reduce CO₂, Electric Vehicles (EV) and HybridVehicles (HV) are effective. Those types of vehicles havepowertrains from conventional vehicles. Those new powertrainsdrastically improve their efficiency from conventional vehicleskeeping the same or superior power performance. On the other hand,those vehicles have an issue for thermal energy shortage duringwarming up process. The thermal energy is very large, and seriouslyaffects the fuel economy for HV and the mileage for EV.In this paper, we propose VHDL-AMS multi-domain simulationtechnique for the estimation of the vehicle performance at theconcept planning stage. The VHDL-AMS is IEEE and IEC standardizedlanguage, which supports not only multi-domain (physics) but alsoencryption. The common modeling language and encryption standard isindispensable for full-vehicle simulation.By the VHDL-AMS modeling, the fuel economy, the effect of heatenergy recovery from the exhaust gas, and the power performance arediscussed for HV. The fuel economy was estimated using LA#4 drivingpattern and the base simulation model validation result was thatsimulation was 22.0 km/L and measurement was 21.7 km/L (error1.4%). The energy management using an exhaust gas heat exchangesystem realized 10.3% fuel consumption improvement during warmingup. As for the power performance, the simulated acceleration timeof 0-100 km/h was 11.12 sec and the measured vehicle time was 11.27sec. The error between simulation and actual measurement result was1.4%.We showed that the application of VHDL-AMS multi-domain HVsimulation is effective for the vehicle concept planning. Since theHV model uses embedded real control software, the VHDL-AMS modelingcan be used as SIL at system control development stage

Notes:

Vendor supplied data

Publisher Number:

2012-01-1025

Access Restriction:

Restricted for use by site license