Patent ID: 8401750
Filing Date: 2013-03-19
Classification: B60T,F16H

Abstract:
1. A method for automatic or semiautomatic selection of a better starting gear in a vehicle, comprising the following steps executed in mentioned order: selecting and engaging a first vehicle starting gear at vehicle stand still, on driver demand controlling vehicle propulsion torque by gradually engaging a propulsion unit to driven wheels of the vehicle as to attempt to achieve a first vehicle take off, detecting if the first vehicle starting gear is too high for a prevailing condition of the first vehicle take off, if the first vehicle starting gear is too high then interrupting the first vehicle take off and automatically braking the vehicle, disengaging the first vehicle starting gear, selecting and engaging an adapted second starting gear which is a lower gear compared to the first starting gear and having, a higher gear ratio, controlling vehicle propulsion torque by gradually engaging the propulsion unit to the driven wheels as to attempt to achieve a second vehicle take off, and if the second vehicle take off attempt results in a transmitting of torque to driven wheels of the vehicle being enough as to perform a take off then stop braking the vehicle.