Issue #27 resolved
On 5 Mar 2018, Karl says:
- There is a problem with the simulation [of car in Examples 8.4 and 12.2]. We say that thelargest steering angle is slightly less than 0.1 rad ($6^\circ$), according to the figure it is more like 0.5 rad ($30^\circ$). Also compare with Exercises 8.4 which also has steering angles up to 0.5 radians which I find excessive. Lower values are used in Exercise 7.4. I suggest that we change the parameter a=0.5 to a smaller value, say a=0.1, the maximum steering angle will be reduced from 0.5 rad to about 0.02 rad. Let us discuss this it may enter in a few more places.
Karl checked with a few people and we got some different responses:
- Johan Andreasson says 4 degrees, and he also says that peak slip for modern tires correspond to 6 degrees. This means that for vehicle steering we should change simulations so that the steering angles are never larger than 4-6 degrees i.e 0.07 to 0.1 rad.
- Bjorn says wheel angles of 10 degrees and Karl says 0.6 to 2.5 degrees. I will ask a third person at Volvo and hear what he says before we start editing steering.