Size and Weight Reduction Technology for a Hybrid System
Date Published: 2009-04-20
Paper Number:2009-01-1339
DOI: 10.4271/2009-01-1339
Citation:
Kubota, S., Sakurai, T., and Okada, H., "Size and Weight Reduction Technology for a Hybrid System," SAE Int. J. Engines 2(1):1143-1150, 2009, doi:10.4271/2009-01-1339.
A small hybrid system was developed for the 2009 model hybrid vehicle. The Intelligent Power Unit (IPU), which consists of a high-voltage battery and a Power Control Unit (PCU), occupies 19% less volume and is 28% lighter than the previous model
(
1
)
.
In order to reduce the size and weight of the IPU, the number of nickel-metal hydride battery modules was reduced, enabling the battery box to be made smaller and lighter. In order to provide the necessary output with fewer battery modules, the length of the battery electrodes was increased, thus raising the output from each battery module. The volume and weight of the PCU were reduced by integrating the inverter, DC-DC converter, and ECU into a single package.
The size reduction of the IPU enabled the IPU to be installed at the bottom of the luggage compartment. As a result, the available space in the luggage compartment is the same as that of a conventional vehicle.
See papers presented at SAE World Congress & Exhibition, April 2009, Detroit, MI, USA, Session: Advanced Hybrid Vehicle Powertrains - Production Hybrid Vehicles and Hybrid Powertrain Systems Integration (Part 5 of 6)
Purchase more technical papers and save! With TechSelect,
you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
Learn more >
