Wheel Group

• Steer Coefficient determines how much the wheel will steer depending on input. In general cars would have Steer Coefficient of 1 in front and 0 in the back, except for four wheel steering cars where rear axle usually steers opposite of the front so the value would be negative. Examples:
  • 1 - 100% steering.
  • 0 - no steering.
  • -0.5 - 50% steering in the opposite direction.

Vehicle with Steer Coefficient of 1 on the front axle and -0.5 on the rear axle. Steering wheel turned fully to the right.

• Add Ackerman - check this Wikipedia link for more info about Ackerman Steering setup.
  • Set automatically for 4-wheel (2×2) vehicles. Not used for motorcycles.
  • When setting it manually, set to <0 for Reverse or Anti Ackermann or >0 for Ackermann steering. Field represents percent where 0.12 equals 12% of the steer angle. Following image describes the effect:

Effect of Ackerman setting on steering.

• Brake Coefficient - amount of brake torque used as a percentage of Brakes ⇒ Max Torque.
• Handbrake Coefficient - amount of brake torque applied when handbrake is activated.

• Toe Angle - toe angle in degrees.

Toe angle. Positive on the left (toe-in) and negative on the right (toe-out).

• Caster Angle - caster angle in degrees.

ImageCaption

• Note: Camber is no longer set through the WheelGroups, except in case of isSolid being true, as in that case the camber is calculated so that the wheels always stay parallel to each other.
  • For fixed camber the camber is set through the WheelController. For dynamic adjustment of camber, the CamberController component can be attached to the WheelController.

Axle settings are used only if there are exactly two wheels in the WheelGroup.

• Anti Roll Bar Force - deprecated, Force Application Point Distance on WheelController should be used instead. Higher the value, lower the roll.
• Is Solid - Imitates solid axle and auto-adjusts camber to make sure that both wheels always stay parallel to each other.