Project
Aim :
To study and analyze the BAJA All - Terrain Vehicle(ATV) using MATLAB Simulink.
Objective :
To carry out a system-level simulation of an all-terrain vehicle and prepare a technical report explaining the model properties & comments on the results.
1. Study the Baja ATV model without a Dashboard.
2. Study the Baja ATV model with a Dashboard.
3. Study the Baja ATV model using a lookup table without a Dashboard.
4. Study the Baja ATV model using a lookup table with a Dashboard.
ALL TERRAIN VEHICLE :
Working : While a traditional transmission uses a wide variety of intricate parts to shift between a range of preset gears, most CVT systems work through a pulley system. In short, this system consists of cones at each pulley connected via a chain belt. The cones can move to increase or decrease the belt diameter to change gear ratios, allow for quick shifting into the needed ratio for increased power, and boost fuel economy.
There is a second, less common, type of CVT that uses a series of discs and rollers, but it operates on similar principles.
Though there are no gears in a CVT, some simulate a more traditional changing of gears. In these transmissions, the belt-and-pulley system is designed to move to preset points by using a traditional shift lever or paddle shifters on the steering wheel.
CVT Subsystem Block :
Variable Transmission Ratio :
The ratio of the follower to base angular speed decreases with gear ratio, and conversely the ratio of the follower to base torque increases with gear ratio. The variable gear is implemented using the Variable Ratio Transmission block which includes compliance.
Engine :
A machine for converting any of various forms of energy into mechanical force and motion also : a mechanism or object that serves as an energy source black holes may be the engines for quasars.
Connections F and B are mechanical rotational conversing ports associated with the engine crankshaft and engine block, respectively. Connections P and FC are physical signal output ports through which engine power and fuel consumption rate are reported.
Input Signal :
Signal builder is used to create signal for brake and throttle.
CVT Gear Ratio input :
Torque vs Engine Speed input:
Vehicle Body :
Output for Case 1 :
VEHICLE SPEED :
CVT SHAFT RPM :
STUDY#1 :
CASE 2:
SIMULINK MODEL FOR BAJA ATV WITH CVT USING DASHBOARD :
Vehicle Model :
CVT MODEL :
OUTPUT FOR CASE 2 :
VEHICLE SPEED :
CVT SHAFT RPM :
STUDY#2 :
CASE 1 :
SIMULINK MODEL FOR BAJA ATV WITH CVT USING LOOKUP TABLE :
CVT SUBSYSTEM :
VEHICLE BODY SUBSYSTEM :
OUTPUT FOR CASE 3 :
VEHICLE SPEED :
CVT SHAFT RPM :
STUDY#2 :
CASE 2 :
SIMULINK MODEL FOR BAJA ATV WITH DASJBOARD USING LOOKUP TABLE :
CVT MODEL :
VEHICLE MODEL :
OUTPUT FOR CASE 4 :
VEHICLE SPEED :
CVT SHAFT RPM :
CONCLUSION :
Thus we have successfully analysed 4 different models of BAJA ATV with CVT.