Title:
ハイブリッド式ダンプトラック
Document Type and Number:
Japanese Patent JP4111629
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hybrid dump truck for enhancing productivity. SOLUTION: The dump truck comprises motors 9a, 9b for driving drive wheels, an engine 1 for a generator 2, a rectifier 4 for converting AC output power from the generator 2 into DC power, inverters 8a, 8b connected with the DC output line of the rectifier 4 in order to control the r.p.m. of the drive motors 9a, 9b, a battery 7 connected in parallel with the DC output line of the rectifier 4 and the input power supply line of the inverters 8a, 8b, and a controller for delivering a speed command signal to the inverters 8a, 8b depending on the acceleration. The drive motors 9a, 9b have a maximum output larger than that of the engine 1 and the controller 20 has a battery charge/ discharge control means 23 for assisting the driving powder of the drive motors 9a, 9b with a discharging current by delivering a command for enabling discharging from the battery 7 to a battery switch 5 when a power larger than the maximum output power of the engine 1 is required for driving the drive motors 9a, 9b.
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Inventors:
Koichiro Ito
Nobuaki Murakami
Nobuaki Murakami
Application Number:
JP10259499A
Publication Date:
July 02, 2008
Filing Date:
April 09, 1999
Export Citation:
Assignee:
KOMATSU LTD.
International Classes:
B60L50/15; B60K6/20; B60K6/26; B60K6/28; B60K6/46; B60W10/08; B60W10/18; B60W10/26; B60W20/00; B60W20/12; B60W20/13; B60W20/20; B60K8/00
Domestic Patent References:
| JP7075208A | ||||
| JP8340605A | ||||
| JP8126116A | ||||
| JP7107617A | ||||
| JP8182110A | ||||
| JP9098514A |