Chrysler laser 1990 Technical Information Manual page 205

When cornering
. I . to the right
I Toe-i n
Rebound
Positive
Semi-trailing type
This middle joint is located exterior to straight line (p'
connecting the trailing arm end mounted on the crossmet
ber side with the axle housing (king pin).
Because of this arrangement, the momentary center P
(intersection of front member centerline (0,) of the trailing
arm and line (02) interconnecting the middle points of the
lateral arm mounting points) is positioned rearward of the
wheel center.
3. When the wheel is subjected to an external force acting
towards the rear or to a braking reaction, the force FR acts
as a moment about momentary center P, causing the tire to
steer in the toe-in direction, thereby securing directional
stability of the vehicle.
While the vehicle is cornering, side force Fc acts on the
outer wheel from the inside and side force Fc' acts on the
inner wheel from the outside. These forces work
moments about momentary centers P and P', respective,,
to cause the outer wheel to be steered toward toe-in and
the inner wheel toward toe-out: As a result, both wheels
are steered in the same direction as the cornering direction
of the vehicle. This results in under-steering to improve
cornering performance and stability.
Toe angl e
4. The change in toe angle and camber to ground is kept small
for bumps or rebounds as shown at the left and this
contributes to steering stability while cornering.
Bump
Camber
(to body)
Bump