Temperaturregelung des Batteriepacks eines Elektrofahrzeugs

Details

Veröffentlichungs-Nr.

EP4751978

Anmeldetag

27. November 2025

Veröffentlichung

3. Juni 2026

Rechtsraum

EP

Abstract

Control software storable and executable by an electronic processing unit (20) of an electric vehicle (10), said electric vehicle (10) including a battery pack (8) and an electric propulsion system (2) comprising a converter (4), an electric motor (3) coupled to the converter (4) and a propulsion control unit (15) configured to control the converter (4) and the electric motor (3) through a FOC, "Field-Oriented Control", control technique as a function of torque values and of motor revolution numbers. The control software is configured in such a way that, when the software is executed by the electronic processing unit (20), the electronic processing unit (20) becomes configured to: drive (50) the propulsion control unit (15) on the basis of a first torque (τ1) and of a real motor revolution number (VREAL), in such a way that the electric motor (3) provides a torque equal to the first torque (τ1) and turns at a revolution number equal to said real motor revolution number (VREAL), in such a way that the electric propulsion system (2) has a first efficiency (η1); acquire (21, 22) an initial temperature (Ti) of the battery pack (8) and a set temperature (TSET) to be reached by the battery pack (8), the set temperature (TSET) being greater than the initial temperature (Ti); determine (25) a motor revolution number correction (Δv) as a function of the difference between the set temperature (TSET) and the initial temperature (Ti); determine (24) a virtual motor revolution number (VVRT) which is a function of the sum of the real motor revolution number (VREAL) and the motor revolution number correction (Δv); and drive (50) the propulsion control unit (15) on the basis of the first torque (τ1) and of the virtual motor revolution number (VVRT), in such a way that the electric motor (3) provides a second torque (τ2), substantially equal to the first torque (τ1), and turns at a revolution number still equal, substantially, to the real motor revolution number (VREAL), in such a way that the electric propulsion system (2) has a second efficiency (η2), which is less than the first efficiency (η1), thereby causing an increment of power losses of the electric propulsion system (2) and the consequent heating of the battery pack (8).

Anmelder

Firma

C.R.F. Società Consortile per Azioni

Land

🇮🇹 Italien