The free inspection involves 25 other tests which include the brake, tyres, side-slip
, suspension, emission, film tint, and undercarriage.
In both side-slip control and yaw rate control by DYC, the desired (reference) models of these variables are established according to driver steering commands.
In (Mirzaei, 2010), a complete LQ optimal problem is formulated to track the proposed desired model for both yaw rate and side-slip angle.
In the above equations, the vehicle side-slip angle [beta] and the yaw rate r are the two state variables.
The steady-state value of vehicle side-slip angle in terms of yaw rate is given by,
To side-slip angle, we can get conclusions: as the center of mass going backward, the overshoot of side-slip angle is decreased, and the stable time is shorten.
The overshoot of side-slip angle is decreased, the response time extend, and the steady-state value is decreased.
Usually, when the mass of center go backward, rear wheels' vertical load and cornering stiffness are increasing, and side-slip angle is decreasing.
This paper studied turning characteristic simulation model of the electric vehicle, conducting simulations with side-slip angle and yaw rate, and simulation with different location in center of mass, then input the result of simulation to the workspace to map the response curves.
According to the kinematic analysis based on the yaw-roll model shown in Figure 1, the relationship among the side-slip angles of the car and the trailer, the yaw rate of the car and the trailer, the roll angles of the car and the trailer, and the articulation angle between the car and the trailer can be expressed as:
The [[beta].sub.c] and [[beta].sub.t] are the side-slip angle at the respective center of gravity (CG) of the car and the trailer, [h.sub.c]cos([[phi].sub.c]) and [h.sub.t]cos([[phi].sub.t]) are the vertical distance between the body CG to the roll center of the car and the trailer, respectively.
The nonlinear stability analysis based on the phase-plane method examines the set of relation between: (1) the leading unit's side-slip angle and side-slip angular velocity ([[beta].sub.c] - d[[beta].sub.c]/dt), (2) the trailing unit's side-slip angle and side-slip angular velocity ([[beta].sub.t] - d[[beta].sub.t] /dt), (3) the side-slip angle of the leading unit, the yaw rate of the leading unit, and the articulation angle between the leading and trailing units ([[beta].sub.c] - [r.sub.c] - [psi]), (4) the side-slip angle of the trailing unit, the yaw rate of the trailing unit, and the articulation angle between the leading and trailing units ([[beta].sub.t] - [r.sub.t] - [psi]), and (5) the articulation angle and the articulation angular velocity ([psi] - d[psi]dt).
"We didn't think it was going to go any-where," Jacobs said, describing his thoughts when he was first approached about doing a sample seat cover for the side-slip prototype.
Aircraft Interior Solutions developed a name for itself for seat cover work, which provided the gateway to landing the deal to assemble the side-slip seat.
The target market for the side-slip? Low-cost carriers such as Southwest Airlines, Frontier Airlines, JetBlue and Allegiant Air in the United States and dozens more abroad.