MAINTENANCE DEVICE FOR CONSTRUCTION MACHINE

• US 20160002892A1
• Filed: 06/20/2014
• Published: 01/07/2016
• Est. Priority Date: 06/21/2013
• Status: Active Grant

• Current Assignee: Hitachi Construction Machinery Company Limited (Hitachi, Ltd.)
• Original Assignee: Hitachi Construction Machinery Company Limited (Hitachi, Ltd.)
• Inventors: AIZAWA, Taiki, MORITA, Yuichiro, SHIBATA, Koichi
• Granted Patent: US 9,777,466 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60R 16/0232 for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
• CPC Class Codes: E02F 9/2062 Control of propulsion units for control of the prime mover depending on the load in a hydraulic or pneumatic drive E02F9/2246
• CPC Class Codes: E02F 9/2066 of the type combustion engines
• CPC Class Codes: E02F 9/2292 Systems with two or more pumps
• CPC Class Codes: E02F 9/2296 Systems with a variable displacement pump
• CPC Class Codes: E02F 9/267 Diagnosing or detecting failure of vehicles
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G05B 23/0283 Predictive maintenance, e.g. involving the monitoring of a system and, based on the monitoring results, taking decisions on the maintenance schedule of the monitored system; Estimating remaining useful life [RUL] preventive maintenance, i.e. planning maintenance according to the available resources without monitoring the system G06Q10/06
• CPC Class Codes: G07C 9/20 involving the use of a pass

Abstract

A maintenance device for a construction machine includes: an abnormality detection means for detecting abnormality of an apparatus installed on the construction machine; an abnormality information output means for outputting abnormality information about the apparatus detected by the abnormality detection means; and a maintenance mode setting means for setting a maintenance mode for performing a maintenance work of the apparatus, wherein the abnormality information output means for eliminating negation or output of the information, if any abnormality of the apparatus is detected in a state in which the maintenance mode is set by the maintenance mode setting means.

Claims

1. A maintenance device for a construction machine, comprising:

an abnormality detection unit that detects abnormality of an apparatus installed on the construction machine;

an abnormality information output unit that outputs abnormality information about the apparatus detected by the abnormality detection unit; and

a maintenance mode setting unit that sets a maintenance mode for performing a maintenance work of the apparatus, wherein

the abnormality information output unit that eliminates negating or outputting the information, if any abnormality of the apparatus is detected in a state in which the maintenance mode is set by the maintenance mode setting means.

2. The maintenance device for a construction machine according to claim 1, wherein

the maintenance mode setting units, upon receipt of a request for setting a maintenance mode, requests inputting a password for authentication and allows the maintenance mode to be set if the password is identical with a preset password.

3. The maintenance device for a construction machine according to claim 1, further comprising:

an engine start up lock unit that licks start up of an engine in a state in which the maintenance mode is set, wherein

the engine start up lock unit, if a request for engine start up is made in a state in which the maintenance mode is set, requests inputting a password for authentication and if the input password is identical with a preset password, unlocks the engine start up.

4. The maintenance device for a construction machine according to claim 1, further comprising:

a maintenance mode notice unit that indicates that the construction machine is in a maintenance mode.

5. The maintenance device for a construction machine according to claim 1, wherein

the maintenance mode setting unit, the engine start up lock unit, and the maintenance mode notice unit constitute a monitor device that includes an input unit having a maintenance mode switch and a display unit.