Energy efficient cornering using over-actuationShow others and affiliations
2019 (English)In: Mechatronics (Oxford), ISSN 0957-4158, E-ISSN 1873-4006, Vol. 59, p. 69-81Article in journal (Refereed) Published
Abstract [en]
This work deals with utilisation of active steering and propulsion on individual wheels in order to improve a vehicle's energy efficiency during a double lane change manoeuvre at moderate speeds. Through numerical optimisation, solutions have been found for how wheel steering angles and propulsion torques should be used in order to minimise the energy consumed by the vehicle travelling through the manoeuvre. The results show that, for the studied vehicle, the energy consumption due to cornering resistance can be reduced by approximately 10% compared to a standard vehicle configuration. Based on the optimisation study, simplified algorithms to control wheel steering angles and propulsion torques that results in more energy efficient cornering are proposed. These algorithms are evaluated in a simulation study that includes a path tracking driver model. Based on a combined rear axle steering and torque vectoring control an improvement of 6–8% of the energy consumption due to cornering was found. The results indicate that in order to improve energy efficiency for a vehicle driving in a non-safety-critical cornering situation the force distribution should be shifted towards the front wheels.
Place, publisher, year, edition, pages
Elsevier Ltd , 2019. Vol. 59, p. 69-81
Keywords [en]
Energy efficiency, Optimisation, Over-actuation, Vehicle control, Automobile steering equipment, Control system synthesis, Energy utilization, Optimization, Propulsion, Safety engineering, Steering, Vehicle wheels, Double lane changes, Force distributions, Optimisations, Simplified algorithms, Vehicle configuration, Wheel steering angle
National Category
Vehicle Engineering
Identifiers
URN: urn:nbn:se:kth:diva-252459DOI: 10.1016/j.mechatronics.2019.02.006ISI: 000468255500007Scopus ID: 2-s2.0-85062904711OAI: oai:DiVA.org:kth-252459DiVA, id: diva2:1337466
Note
QC 20190715
2019-07-152019-07-152022-06-26Bibliographically approved