Bayerische Motoren Werke Aktiengesellschaft

Rainer Mehlhorn

Enrique Marcial-Simon

Thomas Stauner

Xaver Pfab

Simon Ellgas

The electrical charging of a group of vehicles electrically connected to an electricity grid is controlled. A central control system responds to a received increase command by performing a power increase operation according to an increase scheme. The increase command stipulates an amount by which the power draw by the group of vehicles needs to be increased. The increase scheme is ascertained by the central control system based on the increase command and specifies a temporary increase in the charging power for the energy store of one or more vehicles of the group. If the charging operation for the energy store of at least one vehicle is altered by the user after reception of the increase command and before or during the power increase operation, the central control system checks whether the parameters of the altered charging operation does not decrease the amount of power according to the increase command.

Method for controlling the electrical charging of a group of vehicles

A method controls the electrical charging of a group of vehicles which are electrically connected to a power supply system of a power supply system operator, wherein the respective vehicles obtain power for charging a vehicle energy store from the power supply system. A central control system can communicate with the respective vehicles and with a server of the power supply system operator and a number of electrical units via communication signals, wherein the number of electrical units each have a higher response time for an electrical power adjustment in response to communication signals from the central control system and/or a higher time synchronicity with respect to a clock of the central control system in comparison with the vehicles. In response to a received reduction command from the server, the control system transmits one or more first commands which suspend the charging of vehicle energy stores to vehicles in the group, wherein the reduction command stipulates a power amount by which the power consumption of the group of vehicles in the power supply system should be reduced. The control system also determines, at predefined intervals of time, a power value which is composed of the reduction in the total power consumption of the vehicle energy stores and the number of electrical units plus the increase in the total power output of the vehicle energy stores and the number of electrical units. In this case, the control system regulates the power value to the power amount according to the reduction command using one or more second commands which are transmitted to electrical units by the control system and change the power consumption and/or power output of electrical units.

A method controls the electric charging of a group of vehicles. A central control system can communicate with the respective vehicles of the group and with a server of the network operator. In each case a charging time window, a departure time and a setpoint state of charge of the vehicle-side energy store at the departure time are defined in advance for one or more specific vehicles. In addition, a cost value for the charging time window is predefined in accordance with a cost function which specifies a cost level as a function of the charging process according to the charging time window. The central control system transmits a modified charging time window to a respective specific vehicle of at least some of the specific vehicles, after which the charging process is carried out according to the modified charging time window by fulfilling the charging time criterion with an unchanged departure time and setpoint state of charge. The modified charging time window comprises at least one time period which occurs before the start of the non-modified charging time window, wherein the cost value according to the cost function for the modified charging time window is precisely as high as or is lower than the cost value for the non-modified charging time window.

Method and central control system for controlling the electrical charging of a group of vehicles

In connection with an electric charging process of vehicles electrically connected to a power supply system operated by a power supply system operator, one or more parameters to be adhered to for a charging operation of the vehicles are defined and a user of a vehicle can alter at least one of the parameters via a user interface. A central control system is configured to communicate with the vehicles and with a server of the power supply system operator. A method includes performing a power reduction operation in accordance with a reduction scheme in response to a received reduction command. In the event that, after receiving the reduction command and prior to or during the power reduction operation, the user alters at least one of the one or more parameters such that the charging operation of the energy storage device of the respective vehicle is altered, the method further includes checking, by the central control system, whether a preset criterion has been met. In the event that the preset criterion has been met, the method further includes beginning or continuing the power reduction operation in accordance with the reduction scheme for the respective vehicle while adhering to the one or more altered parameters of the altered charging operation.

Method for controlling the electric charging process of a group of vehicles in the event of a power reduction

A method controls electrical charging of a group of vehicles, wherein the respective vehicles are connected to a power supply system for charging a vehicle energy store for driving the particular vehicle, wherein a central control system communicates with the respective vehicles in the group and with a server belonging to the power supply system operator. On the basis of a received charging command from the server which specifies a charging period, the central control system selects a number of vehicles from the group which are intended to be charged. A charging time window, a departure time and a desired state of charge of the vehicle energy store at the departure time are each stipulated in advance for one or more specific vehicles of the number of vehicles, wherein the duration of the charging operation until the desired state of charge is reached is estimated for a particular specific vehicle and the particular specific vehicle distributes the charging operation, according to a cost function which stipulates different cost values for different time periods before the departure time, to the time periods in ascending order of the cost values. The cost function for a particular specific vehicle is stipulated by the central control system on the basis of first to seventh cost values such that charging is preferably carried out in the charging time window and the charging period and at a later time.

Method for controlling electrical charging of a group of vehicles

A method controls electrical charging of a group of vehicles which are electrically connected to a power supply system of a power supply system operator, wherein the respective vehicles draw power from the power supply system for charging a vehicle-side energy store for driving the respective vehicle. A central control system can communicate with the respective vehicles of the group and also with a server of the power supply system operator, wherein the central control system, in response to a received reduction command which originates from the server of the power supply system operator, carries out a charging power reduction control operation for the group of vehicles using charging power measurement values of the respective vehicles and in the process reduces the charging power of at least some of the vehicle-side energy stores in order to reduce the total charging power of the groups of vehicles at least by a power value which is specified by the reduction command. The charging power measurement value of a respective vehicle is measured during charging of the vehicle and provided to the central control system, wherein one or more maximum power values for charging the respective vehicle are further predefined, which maximum power values should not be exceeded by the charging power measurement value. In the event of the charging power measurement value of the respective vehicle exceeding the minimum value from amongst all of the maximum power values and a charging power reduction control operation being imminent, the central control system uses a replacement value, which is the minimum value from amongst all of the maximum power values, instead of the measured charging power measurement value for the charging power reduction control operation.

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Landsham, Germany

Rainer Mehlhorn