CONTROL DEVICE FOR INDUSTRIAL VEHICLE
First Claim
1. A control device for an industrial vehicle including a travel motor, an electric storage device capable of storing regenerative power generated through regenerative braking performed by the travel motor, a load device, a hydraulic pump for supplying a hydraulic circuit with hydraulic oil to operate the load device, and a load motor for driving the hydraulic pump, the control device comprising:
- a power control unit which executes control for supplying the load motor with the regenerative power when the electric storage device is in a fully charged state during regenerative braking performed by the travel motor; and
a resistance flow passage which is arranged in the hydraulic circuit and which enables passage of hydraulic oil while applying flow resistance to the hydraulic oil;
wherein when the electric storage device is in the fully charged state during regenerative braking performed by the travel motor and, at the same time, the load device is not performing a load handling operation, the hydraulic oil supplied from the hydraulic pump is guided to the resistance flow passage.
1 Assignment
0 Petitions
Accused Products
Abstract
A control device for an industrial vehicle including an electric storage device, a load device, a hydraulic pump, and a load motor is disclosed. The electric storage device stores regenerative power generated through regenerative braking performed by the travel motor. The hydraulic pump supplies a hydraulic circuit with hydraulic oil to operate the load device. The load motor drives the hydraulic pump. The control device includes a power control unit and a resistance flow passage. The power control unit executes control for supplying the load motor with the regenerative power when the electric storage device is in a fully charged state during regenerative braking performed by the travel motor. The resistance flow passage is arranged in the hydraulic circuit and enables passage of hydraulic oil while applying flow resistance to the hydraulic oil. When the electric storage device is in the fully charged state during regenerative braking performed by the travel motor and, at the same time, the load device is not performing a load handling operation, the hydraulic oil supplied from the hydraulic pump is guided to the resistance flow passage.
28 Citations
5 Claims
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1. A control device for an industrial vehicle including a travel motor, an electric storage device capable of storing regenerative power generated through regenerative braking performed by the travel motor, a load device, a hydraulic pump for supplying a hydraulic circuit with hydraulic oil to operate the load device, and a load motor for driving the hydraulic pump, the control device comprising:
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a power control unit which executes control for supplying the load motor with the regenerative power when the electric storage device is in a fully charged state during regenerative braking performed by the travel motor; and a resistance flow passage which is arranged in the hydraulic circuit and which enables passage of hydraulic oil while applying flow resistance to the hydraulic oil; wherein when the electric storage device is in the fully charged state during regenerative braking performed by the travel motor and, at the same time, the load device is not performing a load handling operation, the hydraulic oil supplied from the hydraulic pump is guided to the resistance flow passage. - View Dependent Claims (2, 3, 4, 5)
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Specification