A method and device for recording motorcycle hours based on non-volatile memory
A motorcycle hour, non-volatile technology, applied in the direction of instruments, test/monitoring control systems, control/regulation systems, etc., can solve the problems of not being able to adapt to development needs, high cost of motorcycle hour meters, low timing accuracy, etc., to reduce Electric line connection and power consumption, realize resource information sharing, and improve the effect of safety and reliability
Active Publication Date: 2019-03-22
CHINA NORTH ENGINE INST TIANJIN
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Problems solved by technology
The main principle of the motorcycle hour meter is to judge the engine running by collecting the engine speed through the sensor, and then the timer counts the time. The motorcycle hour meter in this way not only has high cost, takes up a lot of space, and has low timing accuracy, it can no longer adapt to the requirements of modern vehicle electronic technology. development needs
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[0028] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0029] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0030] The embodiment of the present invention is to add three functional functions in the control software of the existing engine electronic control system, which are respectively the record storage function of the motorcycle hour, the reading function of the motorcycle hour record data and the setting function of the motorcycle hour data;
[0031] Such as figure 1 As shown, the detailed recording process of the record storage function of the motorcycle hours is as follows:
[0032] First of all, judge whether the engine is started and working by the engine speed, if the engine is running, then use the timing interrupt function of the CPU of the engine electronic control system to accu...
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The present invention provides a nonvolatile memory-based motor hour recording method. According to the method, motor hours, namely, engine operating time, are calculated by the timing interruption function of the CPU of an engine electronic control system; and the motor hours are written into a plurality of determined dedicated address spaces to motor hours of an erasable nonvolatile memory at intervals of one minute. With the nonvolatile memory-based motor hour recording method of the invention adopted, the motor hours can be recorded safely and reliably under a complex electromagnetic environment through methods such as time-sharing, multi-address data backup and reasonable check methods under a premise that hardware is not increased; a diesel engine control unit can transmit the motor hours to a vehicle display instrument or other intelligent control equipment through a bus, so that resource information sharing can be realized; and thus, on the one hand, a vehicle can discard an original independent motor hour meter and related sensors, and therefore, the manufacturing costs of the vehicle can be reduced, and on the other hand, electrical line connections and power source consumption of the vehicle can be decreased, and the safety and reliability of the electrical system of the vehicle can be further improved.
Description
technical field [0001] The invention belongs to the technical field of diesel engine electronics, and in particular relates to a method for reliably recording engine motorcycle hours by using any rewritable nonvolatile storage space in a diesel engine control unit. Background technique [0002] The motorcycle hours of the diesel engine is an important record and usage data in the process of maintenance of the diesel engine and its vehicles. Its main function is to assess the working hours of the engine and provide accurate and reliable basis for engine maintenance. Generally, the engine is manually recorded before leaving the factory, and after the engine is loaded, it is recorded and displayed by the motorcycle hour meter independently installed on the vehicle. The main principle of the motorcycle hour meter is to judge the engine running by collecting the engine speed through the sensor, and then the timer counts the time. The motorcycle hour meter in this way not only has...
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IPC IPC(8): G05B23/02
CPCG05B23/0264
Inventor 胡勇杨凤秋褚全红孟长江白思春范燕朝张春和龙
Owner CHINA NORTH ENGINE INST TIANJIN