公开(公告)号：WO2022211635A1

公开(公告)日：2022-10-06

申请号：PCT/NL2022/050184

申请日：2022-04-01

Applicant: DAF TRUCKS N.V.

Inventor： DINGEMANS, Cornelis Petrus Adrianus ,  KESSELS, Johannes Theodorus Bernard Anna

IPC: B60L7/02 ,  B60L7/06 ,  B60L2200/36

Abstract: A switching control circuit for a DC high voltage battery, to be coupled to a multiphase electric motor for use in a heavy duty vehicle, the switching control unit comprising: a first power switching circuit section, called invertor, having at least two first DC high voltage input terminals connectable to the high voltage battery and controlled by a first invertor control unit, said first control unit arranged to control the first power switching circuit to provide a multiphase AC electric current, from the two first DC high voltage terminals to first multiple AC output terminals, each switched according to a respective AC phase, to be coupled to the electric motor, in order to drive the electric motor through a multiphase AC electric current; and a second power switching circuit section, called brake chopper, having at least two second DC high voltage input terminals connectable to the high voltage battery and controlled by a second invertor control unit, said second control unit arranged to control the second power switching circuit to provide a multiphase AC electric current, from the DC high voltage terminals to second multiple AC output terminals, to be coupled to a brake resistor unit.

公开(公告)号：WO2022191708A1

公开(公告)日：2022-09-15

申请号：PCT/NL2022/050134

申请日：2022-03-11

Applicant: DAF TRUCKS N.V.

Inventor： KESSELS, Johannes Theodorus Bernard Anna ,  VAN REEVEN, Vital

IPC: B60K6/48 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/10 ,  B60W20/40 ,  B60W30/18 ,  B60W50/08 ,  F02N11/00

Abstract: Truck driven by a powertrain, said powertrain comprising an internal combustion engine, a drive train, extending from the internal combustion engine and arranged for transmitting drive torque between the internal combustion engine and driven wheels of the truck, the drive train including an electric motor providing additional drive torque between the internal combustion engine and driven wheels of the truck, a stop-start controller, arranged for controlling the drive train to provide a requested launch torque of the powertrain based at least on measured signals from a throttle pedal of the truck, to launch the truck from standstill to motion while the internal combustion engine is switched off, wherein, while the truck is in standstill, the stop-start controller is arranged for performing i) in a first step, controlling the drive train to decouple from the internal combustion engine; and ii) in a second step, controlling the electric motor in the drive train to provide the requested additional drive torque, to launch the truck to motion without cranking the internal combustion engine regardless of a magnitude of the requested launch torque, wherein, when the truck is in motion, the stop-start controller is arranged for performing iii) in a third step, controlling the drive train to couple to the internal combustion engine; and iv) in a fourth step, controlling the electric motor to provide the additional drive torque to the internal combustion engine, in order to crank the internal combustion engine.

公开(公告)号：WO2021187978A1

公开(公告)日：2021-09-23

申请号：PCT/NL2021/050178

申请日：2021-03-16

Applicant: DAF TRUCKS N.V.

Inventor： KESSELS, Johannes Theodorus Bernard Anna

IPC: B60L50/00 ,  B60L15/20

Abstract: It is aimed to provide a power management system for an electrically driven vehicle that comprises a powertrain of at least two electric motors that can be selectively geared into the powertrain and an electric power source for powering the at least two electric motors. The power management system comprises a mechanical power demand indicator, indicating a level of mechanical power demanded from the powertrain, and an electrical power demand estimator, arranged to estimate an electrical power demand from the electric power source of a respective one of the at least two electrical motors as a function of the demanded mechanical power. The power management system is arranged to activate or deactivate a respective one of said at least two electric motors in response to the mechanical power demand indicator. The power management system is further arranged to deactivate a respective one of the at least two electric motors when the power management system detects that the demanded mechanical power does not exceed a maximum value for the powertrain having a respective one of said at least two electric motors deactivated; and that the estimated electric power demanded by the powertrain having the respective one of said at least two electric motors deactivated, is lower than the powertrain having the respective one of said at least two electric motors activated; or otherwise activate the respective one of the at least two electric motors.