Japan, July 14 -- HITACHI CONSTR MACH CO LTD has got intellectual property rights for 'DUMP TRUCK, AND POWER SUPPLY SYSTEM.' Other related details are as follows:
Application Number: JP,2025-093008
Category (FI): H02J7/34@A,H02J7/00@B,H02J7/00@P,H02J7/00,H02J7/82
Stage: PROBLEM TO BE SOLVED: To provide a dump truck capable of using regenerative braking even when the charge rate of the storage device is high, without installing a power supply device including a contact wire on the downhill.SOLUTION: A dump truck 2 includes a power reception unit 21, a power storage device 22, a sensor 23, a drive motor 24, an inverter 25, a DC/DC converter 26, a resistor 27, a chopper circuit 28, and a control unit 29. The control unit 29 controls the DC/DC converter 26 and the chopper circuit 28 and supplies regenerative power to the power storage device 22. The control unit 29 is configured so as to, when the charging rate of the power storage device 22 exceeds the upper limit, control the DC/DC converter 26 and the chopper circuit 28 and supply the regenerative power to the resistor 27.SELECTED DRAWING: Figure 10 (Grant)
Filing Date: June 4, 2025
Publication Date: Aug. 7, 2025
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
