However , li-ion technology has a thermal stability problem , especially for larger cells that are a necessity for hev applications .
然而,锂电池技术存在一个热稳定性的问题,特别是为是有必要为混合电动汽车的应用提供更大的电池单元。
For dm 's unique advantage of knowledge discovering , applying it to faults diagnosis system for hev battery is a new technology that is worthy to research and develop .
The past researches of hybrid electric vehicle ( hev ) are mainly on product development strategies , technology analysis and evaluation , and corporation brand image . There are few papers to analyze the consumer attitude and behavioral intention on hev .
Along with the increasingly flinty energy resource problem and environment factors , electric vehicle ( ev ) technology is developing rapidly , especially the hybrid electric vehicle ( hev ) .
Human enterovirus ( hev ) 4 infections are the leading cause of aseptic meningitis in pediatric and adult populations and have been associated with severe disease such as myocarditis , encephalitis , and paralytic poliomyelitis .
The paper presents the design concept and key technologies of power control unit ( pcu ) for hybrid electric vehicle ( hev ) with emphasis put on function design , control logic and strategy , system hardware and software design , as well as test bench debugging of pcu .