Appartus and method for adjusting vehicle toe alignment angles
First Claim
1. A method of adjusting toe of a pair of wheels on the same axle, comprising the steps of:
- measuring the, toe of a first wheel of said axle;
subtracting a specification value for the toe of said first wheel from the measured value of toe for said first wheel and storing the result as a first toe comparison value;
adjusting the toe of a second wheel on said axle of said vehicle until the total toe of said wheels on said axle minus a specification value for total toe for said wheels on said axle equals the first toe, comparison value;
subsequently adjusting the toe, of the first wheel until the total toe of said wheels on said axle is substantially equal to said specification value for the total toe for said wheels on said axle.
1 Assignment
0 Petitions
Accused Products
Abstract
Toe of a pair of wheels on the same axle is adjusted by first measuring the toe of a first wheel of the axle. A specification value for the toe of the first wheel is then subtracted from the measured value of toe for that wheel, and the difference is stored as a first toe comparison value. The toe of a second wheel on that axle is adjusted until the total toe of the wheels on that axle minus a specification value for total toe for the wheels on that axle equals the first toe comparison value. The toe of the first wheel is subsequently adjusted until the total toe of the wheels on the axle is substantially equal to the specification value for the total toe for the wheels on that axle. Apparatus which performs the method is also disclosed.
-
Citations
21 Claims
-
1. A method of adjusting toe of a pair of wheels on the same axle, comprising the steps of:
-
measuring the, toe of a first wheel of said axle; subtracting a specification value for the toe of said first wheel from the measured value of toe for said first wheel and storing the result as a first toe comparison value; adjusting the toe of a second wheel on said axle of said vehicle until the total toe of said wheels on said axle minus a specification value for total toe for said wheels on said axle equals the first toe, comparison value; subsequently adjusting the toe, of the first wheel until the total toe of said wheels on said axle is substantially equal to said specification value for the total toe for said wheels on said axle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. Vehicle wheel alignment apparatus for guiding the adjustment of toe of a pair of wheels on the same axle of a vehicle, comprising:
-
sensor apparatus for measuring the toe of a first wheel on a first axle of a vehicle; sensor apparatus for measuring the toe of a second wheel on said axle; means for storing a specification value for the toe of the first wheel; determining means responsive to the sensor apparatus and to the storing means for subtracting the specification value from the measured value of toe for the first wheel and for storing the result in the storing means as a first toe comparison value; said storing means having stored therein a specification value for total toe for said axle of said vehicle, the total toe being the sum of the toe for said first wheel and for the second wheel on said axle; said determining means being responsive to the sensor apparatus for the first wheel and to the sensor apparatus for the second wheel to compute total toe and to update the computation of total toe as additional measurements of the toe of the first wheel and the second wheel are made by the sensor apparatus, said determining means being further responsive to the stored specification of total toe to compute the difference between measured total toe and the total toe specification, said difference being updated by the determining means as additional toe measurements are made by the sensor apparatus; means responsive to the determining means for visually guiding the adjustment of the toe of the second wheel to a point where the total toe of the first and second wheels minus the total toe specification value equals the first toe comparison value, the total toe minus the total toe specification value being adjusted total toe; said determining means being responsive to the adjusted total toe falling within a predetermined tolerance of the first toe comparison value for controlling the visually guiding means to visually guide the adjustment of the toe of the first wheel until the adjusted total toe is substantially zero. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification