公开(公告)号：US20230076114A1

公开(公告)日：2023-03-09

申请号：US17777872

申请日：2021-01-15

Applicant: HITACHI ASTEMO, LTD.

Inventor： Nobuyasu KANEKAWA ,  Hiroshi NAKANO ,  Atsushi ARATA ,  Takao FUKUDA

IPC: B60W20/50 ,  B60W50/029 ,  B60W10/08 ,  B60W10/06 ,  B60W10/02 ,  B60K6/442 ,  B60K6/48 ,  B60K6/46

Abstract: An object of the present invention is to realize a control device having operation continuity at the time of failure with less redundancy and reduce cost.
Provided is a vehicle control system including a transmission unit that transmits energy to a driving wheel, a first control unit that controls the transmission unit, a first source that inputs energy to the transmission unit, a second source that inputs energy to the transmission unit, a second control unit that controls the first source, and a third control unit that controls the second source, wherein when the first control unit fails, the second control unit or the third control unit controls the transmission unit.

公开(公告)号：US20220242399A1

公开(公告)日：2022-08-04

申请号：US17597205

申请日：2020-07-07

Applicant: Hitachi Astemo, Ltd.

Inventor： Nobuyasu KANEKAWA ,  Atsushi ARATA

IPC: B60W20/50 ,  B60W50/029 ,  B60W50/02 ,  B60K6/442

Abstract: An object is to realize a control device having operation continuity when a failure occurs with less redundancy and reduce cost. In order to achieve the above object, the present invention devises the following means. (1) Different motive power (energy) sources provided in a hybrid drive system are regarded as redundant motive power (energy) sources. (2) A control unit (first control unit) of a transmission unit that mixes motive power (energy) from different motive power (energy) sources and transmits energy to a driving wheel is provided with a failure-time operation continuation function. (3) Control units (a second control unit and a third control unit) that respectively control the different motive power (energy) sources are configured to take a common cause failure measure such that both control functions are not lost due to the same failure. (4) When one motive power (energy) source or a control unit of the motive power (energy) source fails, an energy management control unit (fourth control unit) that controls the mixing ratio of the motive power (energy) from the different motive power (energy) sources in the transmission unit controls the transmission unit to transmit the energy to the driving wheel by the motive power (energy) from the other motive power (energy) source.

公开(公告)号：US20230409518A1

公开(公告)日：2023-12-21

申请号：US18036029

申请日：2021-08-31

Applicant: HITACHI ASTEMO, LTD.

Inventor： Yasuhiro IKEDA ,  Tadanobu TOBA ,  Kenichi SHIMBO ,  Atsushi ARATA ,  Takeo YAMASHITA ,  Atsushi ICHIGE ,  Shinichi NONAKA

IPC: G06F15/78 ,  G01R31/3185 ,  G06F15/177

CPC classification number: G06F15/7892 ,  G01R31/318516 ,  G06F15/177

Abstract: An arithmetic operation device executes a test using a partially reconfigurable programmable logic unit, the programmable logic unit includes a test target circuit which is a user circuit, and a non-test circuit which is a user circuit which is not the test target circuit, and the arithmetic operation device includes a configuration control unit which causes the programmable logic unit to form, by partial reconfiguration, a test partition unit which separates the test target circuit and the non-test circuit, and a partition control unit which controls the test partition unit to test the test target circuit.

公开(公告)号：US20230001912A1

公开(公告)日：2023-01-05

申请号：US17778605

申请日：2020-11-06

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroshi NAKANO ,  Nobuyasu KANEKAWA ,  Atsushi ARATA

IPC: B60W20/50 ,  B60W10/08 ,  B60W10/02

Abstract: A vehicle control system includes a first electric motor that causes a vehicle to travel, a second electric motor that generates power by using an output of a power source and starts the power source, a power storage device that stores the power generated by the second electric motor and supplies the power to the first electric motor, a monitoring device that monitors a failure state of the vehicle, and a switch that switches the vehicle to travel from the first electric motor to the second electric motor. In a case of a predetermined driving state in which the monitoring device detects a failure of the first electric motor and a driving force is obtained from the second electric motor, the monitoring device controls the switch to switch the driving force for causing the vehicle to travel from the first electric motor to the second electric motor.

公开(公告)号：US20220080987A1

公开(公告)日：2022-03-17

申请号：US17420045

申请日：2019-12-19

Applicant: Hitachi Astemo, Ltd.

Inventor： Teppei HIROTSU ,  Nobuyasu KANEKAWA ,  Atsushi ARATA

IPC: B60W50/02 ,  B60W50/023 ,  B60W60/00

Abstract: Provided is a device that prevents a vehicle behavior from being unstable when an operation is continued using a degeneration function at a time of failure of a drive unit command value generation function in an autonomous driving system. A future actuator command value outputted by a main function unit for generating a drive unit command value and a simple actuator command value outputted by the degeneration function of generating a drive unit command value are synthesized using a weighting factor that changes with time.

公开(公告)号：US20230160351A1

公开(公告)日：2023-05-25

申请号：US17922814

申请日：2021-02-02

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroshi NAKANO ,  Nobuyasu KANEKAWA ,  Atsushi ARATA

IPC: F02D41/00 ,  F02D41/22

CPC classification number: F02D41/009 ,  F02D41/222

Abstract: A vehicle controller that in serial communication executed at a limited transmission rate, can efficiently transmit a large volume of sensor data and stably execute data processing and control is provided.
The vehicle controller includes a plurality of detectors (6, 10, 13, 19, 20, 21) that detect a plurality of operation conditions of a power generator 1, a control unit 18 that controls the power generator, based on pieces of detection data outputted from the plurality of detectors, a data collecting unit 18 that collects the pieces of detection data together, a serial communication line 17 for serially transmitting the pieces of detection data from the data collecting unit 16 to the control unit 18, and a transmission order setting unit 26 that sets a transmission order of the pieces of detection data in advance, the transmission order being an order in which the pieces of detection data are serially transmitted from the data collecting unit 16 to the control unit 18.

公开(公告)号：US20220242400A1

公开(公告)日：2022-08-04

申请号：US17603702

申请日：2020-03-13

Applicant: Hitachi Astemo, Ltd.

Inventor： Nobuyasu KANEKAWA ,  Atsushi ARATA

IPC: B60W20/50 ,  B60W50/029 ,  B60W10/18 ,  B60W10/06 ,  B60W10/08

Abstract: An object is to simplify a configuration of a control device having continuity of control in a case where an abnormality occurs and to reduce a manufacturing cost.

公开(公告)号：US20220017114A1

公开(公告)日：2022-01-20

申请号：US17414825

申请日：2019-12-04

Applicant: Hitachi Astemo, Ltd.

Inventor： Teppei HIROTSU ,  Nobuyasu KANEKAWA ,  Atsushi ARATA

IPC: B60W60/00 ,  B60W50/038

Abstract: There is no consideration on performing charging control on a battery necessary for limp-home travel according to a travel environment of a vehicle. It is assumed that the vehicle changes a travel lane to a second travel lane by overtaking or the like between time t1 and t0. The second power generation threshold generation unit 33 refers to the lookup table 50 illustrated in FIG. 5 and reads 70 as the second charging threshold SOCth2. Then, the second charging threshold SOCth2 is larger than the first charging threshold SOCth1 as illustrated in FIG. 6(C), and thus, the threshold selection unit 34 outputs the second charging threshold SOCth2 as the selected charging threshold SOCth. At this time, the SOC of the battery is lower than the charging threshold SOCth, and thus, the power generation command value GEN is turned on at time t1, and the power generation engine is started to charge the battery. As a result, when the vehicle is traveling on the second travel lane which is far from an evacuation road 407, a large amount of energy is required for a limp-home operation for returning to the evacuation road 407, and thus, the battery can be sufficiently charged.