[ODE] Car simulation

[Benny Kramek]

You could try using dBodyAddRelForce() on the wheels, instead of using motors:

dBodyAddRelForce(leftwheel, m_fTorqueOnDriveWheels, 0, 0);
dBodyAddRelForce(rightwheel, m_fTorqueOnDriveWheels, 0, 0);

This assumes that the wheels spin around the x axis

---------- Original Message ----------------------------------
From: "Michael Sebastian Sbrissa Bortolin" <michael_bortolin@dell.pucrs.br>
Date: Mon, 4 Feb 2002 17:24:34 -0300

>I need some help. I'm trying to do a  car simulation with ode and I want to know how do I do to move the car only applying a torque on the wheel. I modified the buggy demo to do my car simulation. In real life, the engine of a car apply only some torque on the wheels, but in ode, beyond torque, I need to set the desired velocity.
>
>If someone have a sample code that implement a car simulation with real values, etc, please, let me know. 
>Here is a snippet of my app:
>
>m_fTorqueOnDriveWheels =  m_fAccel * (1.0 - m_fClutch) * LookupTorque(m_iRPM)
>							  * m_fGearRatio[m_iGear]
>							  * m_fDifferentialRatio ;			// Here I get the engine torque
>
>// torque on drive wheel
>dJointSetHinge2Param (joints[0],dParamVel2, ??? );  // Just applying the torque dont do the job? If I really need to set this parameter, what value I must use here?
>dJointSetHinge2Param (joints[0],dParamFMax2, m_fTorqueOnDriveWheels);
>
>Michael Bortolin
>Development Team
>E-Business Research Center - DELL/PUCRS
>Phone: +55 (51) 3320-3639 - Ext. 230
>michael_bortolin@dell.pucrs.br
>
>
>_______________________________________________
>ODE mailing list
>ODE@q12.org
>http://q12.org/mailman/listinfo/ode
>---
>---
>[This E-mail has been scanned for viruses by BarrysWorld]
>

>