公开(公告)号：US20210009002A1

公开(公告)日：2021-01-14

申请号：US17040791

申请日：2018-04-06

Applicant: VOLVO TRUCK CORPORATION

Inventor： Jonas HELLGREN

IPC: B60L58/10 ,  G01R31/367 ,  G01R31/3842 ,  G01R31/374 ,  B60K1/04

Abstract: The invention relates to a system for and method of determining a model for estimating battery properties in a hybrid or electrical drive system (900) for a vehicle (902), the method comprising: providing (51) a function approximator estimating a battery property as a function of two or more measured battery parameters; providing (52) a stream of measured battery parameter values as a function of time for a predetermined period to a predetermined battery cell model describing the relationship between the measured battery parameter and the battery property; determining (S3) a battery property value using the cell model based on a selected portion of the stream of measured battery parameter values; determining (S4) if a predetermined condition for the selected portion of the stream of measured battery parameter values is fulfilled; and if (S5) the predetermined condition is fulfilled, updating (S6) the function approximator based on the battery property value determined by the cell model.

公开(公告)号：US20220297564A1

公开(公告)日：2022-09-22

申请号：US17613071

申请日：2019-05-20

Applicant: VOLVO TRUCK CORPORATION

Inventor： Jonas HELLGREN

IPC: B60L53/62 ,  B60L58/12 ,  H02J7/00 ,  G06Q30/02

Abstract: Provided herein is a method for controlling the charging of at least one electrically driven vehicle of a vehicle fleet including a plurality of vehicles, the method includes the step of receiving from a first vehicle entering a charging area and a second vehicle entering the charging area after the first vehicle state of charge information and information to a spatial distance between the first vehicle and the second vehicle, and/or to a time difference of an estimated arrival time at the charging area between the first and the second vehicle. The method further includes the step of making a charging decision on the basis of said information received from said first and second vehicle, wherein said decision is selected from charging the first vehicle, or not charging the first vehicle.

公开(公告)号：US20220179434A1

公开(公告)日：2022-06-09

申请号：US17593567

申请日：2020-03-19

Applicant: VOLVO TRUCK CORPORATION

Inventor： Mohammad Manjurul ISLAM ,  Jonas HELLGREN

IPC: G05D1/02

Abstract: The invention provides a method for controlling a plurality of vehicles which are repeating a cycle of driving along a route, which has at least one single vehicle area (SLTA1, . . . , SLTAm, SP, TP), characterized by—determining speed profiles for the vehicles,—creating a set of different activation times (t11, t21, tr11, tr21) for the vehicles, from an activation position (SP, TP) of the cycle,—simulating vehicle movements through the cycle, with the speed profiles, and the created set of activation times (t11, t21, tr11, tr21),—repeating, a plurality of times, the steps of creating a set of activation times, and simulating vehicle movements, wherein the created set of activation times are different from one repetition to another,—selecting, for controlling the vehicles, from the sets of activation times created by the repetition of the step of creating a set of activation times, a set of activation times (t12, t22, tr12, tr22) for which the simulation shows that there is a minimum time overlap (to21) of vehicles at any of the at least one single vehicle area, and—controlling the vehicles according to the speed profiles and the selected set of activation times.

公开(公告)号：US20220122463A1

公开(公告)日：2022-04-21

申请号：US17593571

申请日：2019-03-22

Applicant: VOLVO TRUCK CORPORATION

Inventor： Jonas HELLGREN ,  Mohammad Manjurul ISLAM

IPC: G08G1/00 ,  G05D1/02 ,  H04W4/46

Abstract: The invention relates to a method for controlling vehicles (V1-V3) in a mission along a route, comprising—selecting at least two progress control value sets (u, tw), each value set comprising a respective value (u1, u2, u3, tw) of a progress control parameter for at least one of the vehicles, wherein each progress control parameter value influences the rate of progress of the respective vehicle, —determining, for each of the selected progress control value sets, a respective distribution (SoBfut) of the vehicles, if the at least one of the vehicles is controlled based on the respective selected progress control value set (u, tw), so that each progress control value set is correlated to a respective distribution (SoBfut) of the vehicles, —identifying, from the selected progress control value sets, based at least partly on the determinations of the distributions (SOBfut), a progress control value set (u, tw) for controlling the at least one of the vehicles, and—controlling the at least one of the vehicles (V1-V3) according to the identified progress control value set (u).

公开(公告)号：US20210316636A1

公开(公告)日：2021-10-14

申请号：US17276400

申请日：2018-09-17

Applicant: VOLVO TRUCK CORPORATION

Inventor： Esteban GELSO ,  Jonas HELLGREN

IPC: B60L58/12 ,  H02J7/00 ,  G01R31/396 ,  G01R31/367

Abstract: The invention relates to a method (100) for estimating an operating parameter of a battery cell of a battery unit in an electrical propulsion system of a vehicle, the operating parameter being indicative of one of capacity and impedance of the battery cell, the method comprising: selecting (110) at least one battery cell in the battery unit for determining the operating parameter of the battery cell; providing (120) a set of state-of-charge (SOC) estimators, each SOC estimator having a selected operating parameter value for a given time period; and using (130) the set of SOC estimators to determine a value of the operating parameter of the battery cell by performing voltage error minimization.

公开(公告)号：US20160339799A1

公开(公告)日：2016-11-24

申请号：US15112851

申请日：2014-01-22

Applicant: VOLVO TRUCK CORPORATION

Inventor： Jonas HELLGREN

IPC: B60L15/20 ,  B60W10/08 ,  B60W10/10 ,  B60W20/12 ,  B60W10/06 ,  B60W10/30 ,  B60W10/26

CPC classification number: B60L15/2045 ,  B60L11/1862 ,  B60L2200/36 ,  B60L2240/622 ,  B60L2260/52 ,  B60L2260/54 ,  B60W10/06 ,  B60W10/08 ,  B60W10/10 ,  B60W10/11 ,  B60W10/26 ,  B60W10/30 ,  B60W20/12 ,  B60W2510/244 ,  B60W2510/246 ,  B60W2510/305 ,  B60W2550/402 ,  B60W2710/0666 ,  B60W2710/083 ,  B60W2710/10 ,  B60W2710/244 ,  B60W2710/30 ,  B60Y2200/92 ,  Y02T10/6291 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/72 ,  Y02T10/7283 ,  Y02T10/7291 ,  Y02T10/84 ,  Y02T90/16 ,  Y02T90/161 ,  Y02T90/162

Abstract: A method is provided to control a vehicle, wherein the vehicle at least includes a drivetrain, at least a first energy buffer and at least one auxiliary system, wherein the vehicle is controlled with a long term control and a short term control, whereby the long term control defines a signal trajectory of at least one buffer parameter for a predefined time horizon, whereby the long term control accesses a momentary vehicle position and an upcoming travel route for the predefined time horizon and defines the signal trajectory depending on at least the vehicle position and the upcoming travel route, and whereby the short term control controls the vehicle such that the at least one predefined buffer parameter follows the defined signal trajectory.

Abstract translation: 提供了一种用于控制车辆的方法，其中所述车辆至少包括传动系，至少第一能量缓冲器和至少一个辅助系统，其中所述车辆被控制为具有长期控制和短期控制， 术语控制定义了用于预定时间范围的至少一个缓冲器参数的信号轨迹，由此长期控制在预定时间范围内访问瞬时车辆位置和即将到来的行驶路线，并且至少根据车辆位置定义信号轨迹 以及即将到来的旅行路线，由此短期控制控制车辆，使得至少一个预定义的缓冲器参数遵循定义的信号轨迹。

公开(公告)号：US20220161682A1

公开(公告)日：2022-05-26

申请号：US17431305

申请日：2019-02-15

Applicant: VOLVO TRUCK CORPORATION

Inventor： Martin BYRHULT ,  Jonas HELLGREN ,  Hanna RYNGELSSON

IPC: B60L58/12 ,  B60L50/60 ,  B60L58/24 ,  H01M10/48

Abstract: The invention relates to a method for determining an operational parameter indicative of the power capability of an energy storage system (ESS) of a vehicle, wherein the method comprises the steps of determining a state temperature of the ESS; determining an acceptable temperature increase of the ESS for a given time period based on the determined state temperature of the ESS and a maximum temperature threshold of ESS, the maximum temperature threshold being indicative of any one of a safety temperature level of the ESS and an operational life time temperature level of the ESS; and determining a maximum operational power level of the ESS for the given time period based on the determined acceptable temperature increase of the ESS.

公开(公告)号：US20210055355A1

公开(公告)日：2021-02-25

申请号：US17091645

申请日：2020-11-06

Applicant: VOLVO TRUCK CORPORATION

Inventor： Esteban GELSO ,  Jonas HELLGREN

IPC: G01R31/396 ,  G01R31/367 ,  G01R19/165

Abstract: The invention relates to a method for monitoring the status of a plurality of battery cells (C1-C5) in a battery pack (1), said method comprising: arranging said battery cells (C1-C5) in at least two groups (G1-G3) of cells; connecting said groups (G1-G3) of cells to a sensor unit (7b); and obtaining, by means of said sensor unit (7b), at least one sensor measurement (U1sens, U2sens, U3sens) for each group (G1-G3) which is indicative of the state of operation of said battery pack (7a). The method according to the invention further comprises: determining a cell measurement (U1cell, U2cell, . . . ) for each battery cell (C1-C5) by means of an over-determined equation system which defines said cell measurement (U1cell, U2cell, . . . ) as a function of said sensor measurement (U1sens, U2sens, U3sens); and evaluating any residual terms resulting from said equation system in order to identify any battery 1 cell having a cell measurement (Ucell) which deviates from an expected value based on the remaining battery cells. The invention also relates to a battery management system (12) for monitoring the status of a plurality of connected battery cells (C1-C5) as mentioned above.

公开(公告)号：US20180358819A1

公开(公告)日：2018-12-13

申请号：US15578319

申请日：2015-07-14

Applicant: VOLVO TRUCK CORPORATION

Inventor： Jonas HELLGREN ,  Esteban GELSO

IPC: H02J7/00 ,  B60L11/18

Abstract: A method is provided for balancing a battery pack including a plurality of battery cells connected in series, wherein each battery cell is associated with a resistor which is connected in parallel with the battery cell and wherein each of the resistors is coupled in series with a controllable switch which is connected to a control unit. The method includes selectively closing and opening the switch so as to initiate discharging of the corresponding battery cell, thereby balancing the battery cell in relation to other cells of the battery pack. Furthermore, the method includes a) defining a control variable indicating, for each switch, an open or closed condition, b) determining a cost based at least on the current losses of the battery pack resulting from the switch being controlled according to the control variable, repeating steps a) and b) a predefined number of times, d) selecting a control variable which results in the cost being minimized, and e) initiating the balancing based on the selected control variable. A system for balancing a battery pack is also provided.

公开(公告)号：US20180106869A1

公开(公告)日：2018-04-19

申请号：US15567796

申请日：2015-05-08

Applicant: VOLVO TRUCK CORPORATION

Inventor： Esteban GELSO ,  Jonas HELLGREN

IPC: G01R31/36 ,  G01R19/165

CPC classification number: G01R31/396 ,  G01R19/16542 ,  G01R31/367 ,  G01R31/3835 ,  H01M2220/20 ,  H02J7/0021 ,  Y02T10/7055

Abstract: A method is provided for monitoring the status of a plurality of battery cells in a battery pack the method including: arranging the battery cells in at least two groups of cells; connecting the groups of cells to a sensor unit; and obtaining, by means of the sensor unit, at least one sensor measurement for each group which is indicative of the state of operation of the battery pack. The method according to the invention further includes: determining a cell measurement for each battery cell by means of an over-determined equation system which defines the cell measurement as a function of the sensor measurement; and evaluating any residual terms resulting from the equation system in order to identify any battery cell having a cell measurement which deviates from an expected value based on the remaining battery cells. A battery management system for monitoring the status of a plurality of connected battery cells as mentioned above is also provided.