Endurance performance testing method for starter

A test method and starter technology, applied in the direction of engine test, machine/structural component test, vehicle test, etc., can solve problems such as adjustment, failure to truly reflect the whole process of engine starting, failure to truly reflect, etc. Achieve accurate measured parameters, improve the effects of simulated loading and inaccurate simulated engine speed

Active Publication Date: 2007-04-04
BYD CO LTD
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  • Summary
  • Abstract
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AI Technical Summary

Benefits of technology

The technology described by this patented method allows for precise simulation of an actual vehicle's power system when running on different types of roads or under varying weather conditions without requiring any modifications after startup. This helps researchers better determine how well they will be able to use their new equipment before actually driving them down roadways.

Problems solved by technology

Technicians have developed various ways for testing the durable life (durable) of engines used in vehicles such as cars or trucks. These tests involve measuring how well they can handle their fuel supply without losing them quickly enough that they may no longer work properly. One way involves installing a specialized device called a stake onto each end of the vehicle's drive train wheel before carrying out these simulations. By loading different loads into the simulator engine under specific circumstances like idling stop timing, improving its ability to resist damage from road debris, etc., the stump becomes better able to protect against failure modes caused by environmental factors like temperature changes.

Method used

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  • Endurance performance testing method for starter
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Embodiment Construction

[0012] Firstly, the curve of the resistance torque changing from large to small during the engine starting process is measured on the engine test bench, and then copied to the control system of the simulated engine starter durability test bench shown in Figure 1. According to this curve, the brake is dynamically loaded with resistance torque in the starter durability test.

[0013] As shown in Fig. 1 and Fig. 2, when performing the starter durability test, the computer control system simulating the engine starter durability test bench first gives a maximum resistance torque that needs to be overcome when the engine is started to the magnetic powder brake 4, and closes the switch , the starter motor 1 starts. According to the above-mentioned measured resistance torque change curve in the process of starting the engine in the loaded state, the computer control system sends a dynamic torque to the magnetic powder brake 4, after a dead start time t 1 =1s, while the control system...

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Abstract

A method for testing durability of starter includes loading maximum drag torque required to be overcome to start up starter on brake at engine test table, carrying out load of drag torque on brake dynamically according to variation curve in course of starter being started up and tracking speed variation of engine flywheel after dead start up time, controlling rise-up of overriding motor rotary speed to be synchronized with flywheel, switching off power supply of starter when clutch is on and speed rise-up of motor is controlled to be power switching-off rotary speed.

Description

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Claims

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Application Information

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Owner BYD CO LTD
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