Electric Motorcycle Hydraulic Pump False Warning Prevention
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Solution Overview
Problem
Conventional electric motorcycles incorrectly indicate hydraulic pump failures when the pump is deactivated in a normal state, leading to misunderstandings and potential system malfunctions during transportation to inspection.
Innovation Solution
An electric motorcycle system that includes a hydraulic pump, oil passage, hydraulic pressure detector, and a determiner unit to differentiate between normal and abnormal hydraulic pressure states, preventing false warnings and allowing for safe inspection and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hydraulic pressure detector continuously monitors hydraulic pressure and outputs warning signals when pressure decreases, then reliability of failure detection is improved, but false warnings occur when the pump is deactivated in normal state
Solution Approach 1:
The control unit receives feedback from both the hydraulic pressure detector and the pump state detector, and processes this feedback information to determine whether to output warning signals. This feedback mechanism allows the system to distinguish between normal pressure drops during pump deactivation and actual hydraulic failures, eliminating false warnings while maintaining reliable failure detection.
Solution Approach 2:
The control unit acts as an intermediary between the hydraulic pressure detector and the warning output device. It mediates the warning signal generation by cross-referencing pump state information, preventing false warnings from being transmitted to the driver while ensuring genuine failures are properly indicated.
2Reliability
If the warning light is activated when hydraulic pressure decreases, then driver awareness of hydraulic issues is improved, but driver misunderstanding occurs during normal pump deactivation states
Solution Approach 1:
The control unit processes feedback from multiple sensors (hydraulic pressure detector and pump state detector) to make intelligent decisions about warning light activation. This ensures the driver receives accurate information only when genuine hydraulic problems exist, preventing confusion during normal operational states such as pump deactivation before driving.
3Use of energy by moving object
If the hydraulic pump is deactivated before driving to save energy, then energy consumption is reduced, but hydraulic pressure drops causing false failure indications
Solution Approach 1:
The system performs preliminary deactivation of the hydraulic pump before driving operations to conserve energy. The control unit is programmed to detect this normal deactivation state and distinguish it from abnormal failure states, allowing energy-efficient operation without compromising monitoring accuracy.
Solution Approach 2:
By continuously monitoring both hydraulic pressure and pump state, the system receives feedback that allows it to differentiate between intentional pump deactivation (normal) and pump failure (abnormal). This feedback mechanism maintains monitoring accuracy while enabling energy-saving operational modes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Accurately identifies hydraulic pump failures, avoiding misunderstandings and ensuring safe operation by differentiating between normal and abnormal hydraulic pressure states, thus preventing system malfunctions during transportation and use.
Implementation Method 1
a hydraulic pressure detecting device for detecting a hydraulic pressure in the oil passage
Implementation Method 2
a hydraulic pump; an oil passage through which oil forcibly fed by the hydraulic pump flows
Data Source
AI summary
Warning which warns about a decrease in a hydraulic pressure in an oil passage is inhibited from being output when the hydraulic pressure is decreased under a state in which a hydraulic pump is deactivated in a normal state. An electric motorcycle comprises a hydraulic pump (10), an oil passage (14), a first hydraulic pressure detecting section (16) for detecting a hydraulic pressure in the oil passage (14), a hydraulic pressure determiner section (step S102) for determining whether or not a value of the hydraulic pressure detected by the first hydraulic pressure detecting section (16) is less than a first allowable value, a pump state determiner section for determining whether or not an activation command is output to the hydraulic pump (10), and a warning output section for outputting a warning signal according to a result of the determination performed by the hydraulic pressure determiner section and a result of the determination performed by the pump state determiner section, wherein the warning output section does not output the warning signal (step S 112), when the pump state determiner section determines that the activation command is not output to the hydraulic pump (10) and the hydraulic pressure determiner section determines that the value of the hydraulic pressure in the oil passage (14) is less than the first allowable value; and the warning output section outputs the warning signal (step S 112, S104), when the pump state determiner unit determines that the activation command is output to the hydraulic pump (10) and the hydraulic pressure determiner unit determines that the value of the hydraulic pressure in the oil passage (14) is less than the first allowable value.