The following data and mapping are for the 2-D shift mapping algorithm that the controller will use to determine when and if to shift. The solid lines on the graph represent up-shift boundaries, and the dashed lines represent down-shift boundaries. This data is very preliminary, and much testing is required once the control system is working on th
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e ATV. As such, these points must be movable in the code so as to allow the tweaking that is necessary during testing. Both a linear interpolation scheme and then later an equation will be used to represent these boundary lines in the control software. Linear interpolation will define the points more accurately, though will require more time in processing than a simple equation. Once the testing phase is done with linear interpolation, an equation will be best suited. One of the main reasons for selecting the electric cylinder over the pneumatic system was the total energy usage. The calculations make use of duty-cycle, the percentage of time that the particular item draws its power from the electrical system. Thus, an intermittent system draw can be thought of as a lower, steady current draw. The system supply of energy is the stator, which is specified in the Polaris manual to provide 200 W at 3000 rpm. This value will be used as a minimum and worst-case. The worst-case energy usage for the entire ATV, minus any shifting systems, is calculated at 108 W. The pneumatic system assumes that the air pump is constantly, allowing about 5 shifts per 20 seconds. This system requires a constant 120 W. The electric solenoid cylinder is only actuated once for 0. 2 seconds every second, thus guaranteeing a shift every second. This system requires 38 A, or similar to a constant 91 W. Because of the lower energy requirements and higher...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
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The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
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In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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