Abstract
Clutch is a mechanism which enables the rotary motion of one shaft to be transmitted, when desired, to a shaft the axis of which is coincident with that of the first or we can say that clutches are the intermediate between the driving and the driven shaft. It is mainly used for connecting and disconnecting as and when required according to the driving condition of the machines and any automobiles stopping engine. There are some technical disadvantages in mechanical operated clutches. so here we are using automatic clutches .
Components 1.Clutch housing 2.Driving shaft 3.Driven shaft 4.Clutch shoe 5.Clutch plate 6.Shoe return spring 7.Coupling 8.AC motor 9.Wheel Bearing
Working Principle A Auto Clutch is a clutch that uses Centrifugal Force to connect to concentric shafts, with the driving shaft nested inside the driven shaft. It engages more at higher speeds. The input of the clutch is connected to the engine crankshaft while the output may drive a shaft, chain, or belt. As engine revolutions per minute increase, weighted arms in the clutch swing outward and force the clutch to engage. The most common types have friction pads or shoes radially mounted that engage the inside of the rim of a housing. On the center shaft there are an assorted number of extension springs, which connect to a clutch shoe. When the central shaft spins fast enough, the springs extend causing the clutch shoes to engage the friction face. It can be compared to a drum brake in reverse. This type can be found on most home built karts, lawn and garden equipment, fuel-powered model cars and low power chainsaws. Another type used in racing karts has friction and clutch disks stacked together like a motorcycle clutch. The weighted arms force these disks together and engage the clutch. When the engine reaches a certain speed, the clutch activates, working somewhat like a continuously variable transmission. As the load increases, the speed drops, disengaging the clutch, letting the speed rise again and reengaging the clutch. If tuned properly, the clutch will tend to keep the speed at or near the torque peak of the engine. This results in a fair bit of waste heat, but over a broad range of speeds it is much more useful than a direct drive in many applications.
SUMMARY OF THE INVENTION The present invention has been devised in view of the above conventional problems, it is therefore an object of the present invention to provide an engine controller of an engine unit with an idle speed control (ISC) device for use in a vehicle including an automatic clutch, the controller capable of preventing unintentional increase in engine speed even if the ISC device breaks down and capable of preventing excessive effect of engine brake resulting from fuel cutoff or ignition cut off hence preventing degradation of driver's sensation during traveling. In order to achieve the above object, the present invention is configured as follows: In accordance with the present invention, an engine controller for a vehicle using an automatic clutch device for power transmission, is characterized in that an idle speed control means is provided for an engine intake system that adjusts the amount of intake air by implementing control of the opening degree of a throttle valve, and the engine controller comprises: a full-close state detecting means for detecting the full-close state of the throttle valve; an engine speed detecting means for detecting the engine speed; and an engine halt controlling means for implementing engine halt control based on the halt control starting conditions that the detected engine speed is equal to or greater than a first set rotational frequency, which is set to be equal to or lower than the clutch engagement rotational frequency of the automatic clutch device, and that the full-closed state of the throttle valve is detected.
Worked We Completed the fabrication Of base and frame where the whole project will install. Working On Now We are calculating & Fabricating the measure stuff of Auto clutch system. Example :we making the frame where the clutch pad will attach.
The Project will ready some more days.