Battery warm-up apparatus of hybrid electric vehicle
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United States of America Patent
Stats
-
Sep 1, 2015
Issued Date -
N/A
app pub date -
Nov 28, 2011
filing date -
Nov 30, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hybrid electric vehicle includes a wet clutch device that establishes and interrupts a connection between an engine and an electric motor, and a transmission switchable between a driving range in which driving force can be transmitted to driving wheels and a non-driving range in which transmission of the driving force is interrupted. When a battery temperature is greater than a warm-up determination value while the vehicle is at a standstill with the transmission switched to the non-driving range, the wet clutch device is kept disengaged. When the battery temperature is less than the warm-up determination value, a battery warm-up control unit switches the wet clutch device into engaged state to connect the engine and the electric motor together and vary driving force of the electric motor alternately to a positive side and a negative side so as to repeatedly charge and discharge the battery.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 10 Citation Count
- B60K Class
- 6.45 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 1, 2027 |
