This SAE Information Report presents the background and rationale for SAE J1574-1. The motor vehicle industry is working toward a more complete understanding of the factors affecting the motions of vehicles on the roadway, by using a variety of techniques that predict responses to road and operator inputs. The capability to predict responses is desirable so that vehicles can be designed for optimum safety and utility. In addition to the force and moment properties of the pneumatic tires, a number of vehicle and suspension parameters affect the response of the vehicle; these include weight, center-of-gravity location, moments of inertia, suspension ride and roll rates, suspension kinematic and compliance properties, and shock absorber characteristics. These parameters must be quantified in order to predict vehicle responses. Measurement of most of these parameters will be limited to determining their values in the linear range for use in directional control simulations.
SAE J1574/2-2018 history
2018SAE J1574/2-2018 Measurement of Vehicle and Suspension Parameters for Directional Control Studies - Rationale
2012SAE J1574/2-2012 Measurement of Vehicle and Suspension Parameters for Directional Control Studies - Rationale
2005SAE J1574/2-2005 Measurement of Vehicle and Suspension Parameters for Directional Control Studies--Rationale
2000SAE J1574/2-2000 Measurement of Vehicle and Suspension Parameters for Directional Control Studies--Rationale
1994SAE J1574/2-1994 Measurement of Vehicle and Suspension Parameters for Directional Control Studies - Rationale@ Information Report (May 1994)