This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Investigation of Climate Control Power Consumption in DTE Estimation for Electric Vehicles
Technical Paper
2014-01-0713
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Distance to empty (DTE) estimation is an important factor to electric vehicle (EV) applications due to its limited driving range. The DTE calculation is based on available energy of the battery and power usage by the powertrain components (e.g. electric motor) and climate control components (e.g. PTC heater and electric AC compressor). The conventional way of estimating the DTE is to treat the power consumed by the climate control system the same as the power by the powertrain for either instantaneous or rolling average estimation. The analysis in this study shows that the power consumption by the climate control system should be estimated based on the current ambient conditions and driver's input instead of using the recorded data from the past driving cycles. The climate control should also be considered separately from the powertrain in power usage rolling average calculation, which results in improvements in DTE estimation especially for extreme hot and cold conditions. Additionally, the climate control power consumption shows unique characteristics during the initial period of cabin climate control. The effect of the AC pull-down and heating warm-up on DTE estimation is also analyzed here. An innovative method is proposed to average out the power usage output curve by the climate control system during the initial period of cabin conditioning. As a result, the DTE estimation for electric vehicles with cabin conditioning can have better accuracy and be more adaptable to the changes in climate control settings set by the driver.
Recommended Content
Technical Paper | Low Temperature Thermal Energy Storage (TES) System for Improving Automotive HVAC Effectiveness |
Technical Paper | Optimizing Battery Cooling System for a Range Extended Electric Truck |
Technical Paper | Future Electric Cars |
Authors
Citation
Gao, G., "Investigation of Climate Control Power Consumption in DTE Estimation for Electric Vehicles," SAE Technical Paper 2014-01-0713, 2014, https://doi.org/10.4271/2014-01-0713.Also In
References
- California Center for Sustainable Energy (CCSE) California Plug-in Electric Vehicle Driver Survey Results May 2013 CCSE Website http://energycenter.org/programs/clean-vehicle-rebate-project/vehicle-owner-survey/may-2013-survey
- Thanthry , S. Adaptive DTE Computation for Robust Fuel Computer Display SAE Technical Paper 2011-28-0040 2011 10.4271/2011-28-0040
- Larminie , J. and Lowry , J. Electric Vehicle Technology Explained Wiley Chichester 0-470-85163-5 201 211 2003
- Cho , I. , Sung , K. , Kim , W. , Hwang , D. Device and method for calculating distance to empty of electric vehicle 2012
- Kim , S. Technique for calculating distance to empty in electric vehicle Kia Motors Corporation and Hyundai Motor Company US Patent Application 20130158758 2013
- Viet , Q. Electronic System and Method for Calculating Distance to Empty for Motorized Vehicles Ford Motor Company US Patent 5301113 1994
- Siy , T. Electric Vehicle Range Prediction General Motors Corporation US Patent Application 20120245750 2012