Device for detecting failure of hydraulic motor, and hydraulic vehicle
AssigneeHitachi Construction Machinery Co., Ltd.
InventorsKazuhiro Ichimura, Katsuaki Kodaka, Saburou Yoshio, Akiko Yoshio
Life of this patent
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Abstract
A failure detection device for a hydraulic motor of the present invention comprises a hydraulic pump 3 that is driven by a prime mover 2; a hydraulic motor 1 that is driven by hydraulic oil discharged from the hydraulic pump 3; an abnormality detection device 35 that detects an abnormal operation of the hydraulic motor 1; and a warning device 30, 39, 40 that issues a warning when the abnormal operation of the hydraulic motor 1 is detected by the abnormality detection device 35.
Claims20
A failure detection device for a hydraulic motor, comprising:
- a hydraulic pump that is driven by a prime mover;
- a hydraulic motor that is driven by hydraulic oil discharged from the hydraulic pump;
- an abnormality detection device that detects an abnormal operation of the hydraulic motor;
- and
- a warning device that issues a warning when the abnormal operation of the hydraulicmotor is detected by the abnormality detection device.
A failure detection device for a hydraulic motor, comprising:
- a hydraulic pump that is driven by a prime mover;
- a hydraulic motor that is driven by hydraulic oil discharged from the hydraulic pump;
- an abnormality detection device that detects an abnormal operation of the hydraulic motor;
- and
- a drive restriction device that restricts a driving of the hydraulic motor when the abnormal operation of the hydraulic motor is detected by the abnormality detection device.
A hydraulic drive vehicle, comprising:
- a hydraulic pump that is driven by a prime mover;
- a hydraulic motor for traveling that is driven by hydraulic oil discharged from the hydraulic pump;
- an abnormality detection device that detects an abnormal operation of the hydraulic motor for traveling;
- and
- a warning device that issues a warning when the abnormal operation of the hydraulic motor for traveling is detected by the abnormality detection device.
A hydraulic drive vehicle, comprising:
- a hydraulic pump that is driven by a prime mover;
- a hydraulic motor for traveling that is driven by hydraulic oil discharged from the hydraulic pump;
- an abnormality detection device that detects an abnormal operation of the hydraulic motor for traveling;
- and
- a drive restriction device that restricts a driving of the hydraulic motor for traveling when the abnormal operation of the hydraulic motor for traveling is detected by the abnormality detection device.
Dependencies are inferred from the claim text.