公开(公告)号：US11001261B2

公开(公告)日：2021-05-11

申请号：US16479294

申请日：2017-01-23

Applicant: Volvo Truck Corporation

Inventor： Niklas Öberg ,  Anders Eriksson

IPC: B60T8/32 ,  B60W30/18 ,  B60T7/04 ,  B60W30/192

Abstract: The invention relates to a method and an arrangement for controlling a vehicle (100) during a downhill start. The vehicle comprises a service brake (131a, 131b; 132a, 132b; 33a, 133b), an engine (119) and a transmission (120) being arranged between the engine and at least one driven axle (123), wherein the service brakes, the engine and the transmission are controlled by an electronic control unit (140). The method involves registering that the vehicle is located on a downhill gradient; registering an action from the driver, indicating a request to start the vehicle; controlling the service brake to maintain the vehicle stationary during a predetermined time after the request before initiating a controlled service brake release; controlling a gradual release of the service brake in response to at least one detected first vehicle operating parameter; and releasing the service brake when detecting that a predetermined threshold for at least one second vehicle operating parameter has been attained.

公开(公告)号：US10647320B2

公开(公告)日：2020-05-12

申请号：US15755185

申请日：2015-08-28

Applicant: VOLVO TRUCK CORPORATION

Inventor： Tobias Carlsson ,  Anders Eriksson ,  Lars Karlsson ,  Henrik Andersson

IPC: B60W30/14 ,  B60W10/18 ,  B60W30/19 ,  B60T7/12 ,  B60W30/188 ,  B60W10/11 ,  B60W30/18

Abstract: A device and a method for controlling vehicle speed in a vehicle equipped with cruise control while traveling downhill. The method involves driving a vehicle downhill with the cruise control set to a brake speed; detecting a current vehicle speed; applying the auxiliary brake to maintain the brake speed; detecting a request for a downshift from a current gear to a lower gear; and determining if a downshift is permissible at the current speed. If a downshift is not permissible, then a control unit automatically applies the service brakes to retard the vehicle speed; retarding the vehicle from a current speed to a lower speed at which a downshift to a lower gear is permissible; and performing a downshift to a lower gear when the second vehicle speed is reached. The cruise control is set to a second brake speed lower than the first brake speed.

公开(公告)号：US09714705B2

公开(公告)日：2017-07-25

申请号：US14778762

申请日：2013-03-27

Applicant: VOLVO TRUCK CORPORATION

Inventor： Henrik Andersson ,  Anders Eriksson

IPC: F16H61/16 ,  F16H61/12 ,  F16H61/02 ,  F16H59/78 ,  F16H59/66 ,  F16H59/36 ,  F16H59/14 ,  B60W30/188 ,  B60W30/184 ,  F16H59/74

CPC classification number: F16H61/16 ,  B60W30/1843 ,  B60W30/1846 ,  B60W30/1882 ,  B60W30/1884 ,  B60W2510/0638 ,  B60W2550/143 ,  B60W2710/1005 ,  B60W2710/1022 ,  F16H59/14 ,  F16H59/36 ,  F16H59/66 ,  F16H59/78 ,  F16H61/0213 ,  F16H61/12 ,  F16H2059/147 ,  F16H2059/366 ,  F16H2059/666 ,  F16H2059/743 ,  F16H2061/0216 ,  F16H2061/022 ,  F16H2061/124 ,  F16H2061/161

Abstract: A control method is provided for a powertrain in a vehicle, the powertrain including an engine mechanically connected to a gearbox and an Electronic Control Unit (ECU), wherein the method includes allowing an extraordinary gear shift in spite of a first torque comparison indicating an expected engine output torque demand above a first general limit for allowed output torque associated with the extraordinary gear shift provided that: a second torque comparison indicates that the expected engine output torque demand after the extraordinary gear shift is within the limits of a second temporarily increased allowed engine output torque limit; and an extraordinary gear shift criteria is fulfilled indicating a gear shift is allowed the criteria being dependent on at least one parameter chosen among estimated fuel efficiency, engine efficiency, expected future torque demand, time of running the engine above the general engine torque limit and engine temperature.

公开(公告)号：US12030493B2

公开(公告)日：2024-07-09

申请号：US17793073

申请日：2020-01-17

Applicant: Volvo Truck Corporation

Inventor： Anders Eriksson

IPC: B60W30/14 ,  B60W30/18 ,  B60W30/182

CPC classification number: B60W30/146 ,  B60W30/18172 ,  B60W30/182 ,  B60W2300/125 ,  B60W2552/05 ,  B60W2552/20 ,  B60W2710/1005 ,  B60W2720/10 ,  B60W2720/106

Abstract: An automatic cruise control system for controlling at least a powertrain of a vehicle, the cruise control system being configured to automatically control a vehicle speed to a target speed determined based on a set speed and on information relating to a road topography along an expected travelling route of the vehicle. The automatic cruise control system is configured to:



while automatically controlling the vehicle speed to the target speed, receive an indication that a slippery road condition applies or is expected to apply,
in response to receiving said indication, activate a predefined slippery road condition driving mode in which predetermined restrictions apply, said restrictions relating to at least one of the vehicle speed, an allowable vehicle acceleration, and a gear selection of the powertrain,
control at least the powertrain in accordance with the slippery road condition driving mode.

公开(公告)号：US11719172B2

公开(公告)日：2023-08-08

申请号：US17343478

申请日：2021-06-09

Applicant: VOLVO TRUCK CORPORATION

Inventor： Anders Eriksson ,  Jan Odeberg

IPC: F02D13/02 ,  F02D23/00 ,  F02D41/00 ,  F02D41/26

CPC classification number: F02D13/0249 ,  F02D23/00 ,  F02D41/0082 ,  F02D41/26

Abstract: A method performed by a control unit (11) for controlling exhaust valves (1A-6A, 1B-6B) of cylinders (1-6) in an internal combustion engine (10) is provided. The method comprise controlling (410) a number of first exhaust valves (1A-3A) for a first set of cylinders (1-3) to transfer exhaust gas to a turbine (8)) during part of an exhaust phase (Δt1) of the first set of cylinders (1-3) via a first exhaust manifold (12). Also, the method comprises controlling (420) a number of second exhaust valves (1B-3B) for the first set of cylinders (1-3) to transfer exhaust gas to an exhaust gas recirculation, EGR, conduit (9)) during part of the exhaust phase (Δt1) of the first set of cylinders (1-3) via a second exhaust manifold (7). The method further comprises controlling (430) a number of first exhaust valves (4A-6A) for a second set of cylinders (4-6) to transfer exhaust gas to the turbine (8) during part of an exhaust phase (Δt2) of the second set of cylinders (4-6) via the first exhaust manifold (12). Furthermore, the method comprises controlling (440) a number of second exhaust valves (4B-6B) for the second set of cylinders (4-6) to transfer exhaust gas to the EGR conduit (9) during a part of the exhaust phase (Δt2) of the second set of cylinders (4-6) via the second exhaust manifold (7). Here, the exhaust phase (Δt1) of the first set of cylinders (1-3) is separated in time from the exhaust phase (Δt2) of the second set of cylinders (4-6).
A control unit (11), a computer program, a carrier, an internal combustion engine and a vehicle is also provided.

公开(公告)号：US11428180B2

公开(公告)日：2022-08-30

申请号：US16625599

申请日：2017-06-29

Applicant: VOLVO TRUCK CORPORATION

Inventor： Björn Lundstedt ,  Anders Eriksson

IPC: F02D41/02 ,  F01N3/02 ,  F01N9/00 ,  F01N11/00 ,  F01N3/021

Abstract: A method for controlling a vehicle propulsion system. More particularly, the method estimates a future, upcoming driving condition and controls the vehicle propulsion system to operate the prime mover in a specific operation mode based on a determined regeneration level of a particle filter for the estimated future, upcoming driving condition.

公开(公告)号：US11072335B2

公开(公告)日：2021-07-27

申请号：US16479991

申请日：2017-01-31

Applicant: VOLVO TRUCK CORPORATION

Inventor： Johan Larsson ,  Anders Eriksson

IPC: B60W30/188 ,  B60W10/06 ,  B60W10/11 ,  B60W10/18 ,  B60W30/18

Abstract: The invention provides to a method for controlling a vehicle (1) with an internal combustion engine (2) and a transmission (3), the transmission being arranged to automatically provide shifts between a plurality of gear ratios between the engine and at least one driven wheel (5) of the vehicle, characterized by the steps of: —registering (S1, S108) a decrease of a demanded torque from an engine control input device (8) of the vehicle, —controlling (S2, S109) in response to the demanded torque decrease the rotational speed of the engine so as to not be below a rotational speed threshold value which is above an idle speed of the engine, and where said rotational speed threshold value is determined so as for a transmission gear down shift to be avoided.

公开(公告)号：US10948064B2

公开(公告)日：2021-03-16

申请号：US16615282

申请日：2017-06-09

Applicant: VOLVO TRUCK CORPORATION

Inventor： Niklas Öberg ,  Anders Eriksson

IPC: B60W10/16 ,  F16H48/22 ,  B60K23/04 ,  B60T8/172 ,  B60T8/18 ,  B60T8/24 ,  B60T8/58 ,  B60W10/18 ,  B60W30/18 ,  F16H48/24 ,  B60K17/36

Abstract: A method for controlling a differential braking arrangement of a vehicle, said vehicle comprising at least one auxiliary braking arrangement and at least one differential braking arrangement, said auxiliary braking arrangement and said differential braking arrangement being connected to a pair of propelled wheels of said vehicle, wherein the differential braking arrangement is arranged to control a relative rotational speed between the pair of propelled wheels, wherein the method comprises the steps of receiving a signal indicative of a downhill slope for a road ahead of said vehicle; determining an inclination of said downhill slope; determining a braking power needed for the at least one auxiliary braking arrangement for preventing the vehicle speed of the vehicle from exceeding a predetermined speed limit when driving at the downhill slope; and engaging the at least one differential braking arrangement for reducing the relative rotational speed between the propelled wheels if the determined braking power of the at least one auxiliary braking arrangement is higher than a predetermined threshold.

公开(公告)号：US20200079344A1

公开(公告)日：2020-03-12

申请号：US16493858

申请日：2017-03-27

Applicant: VOLVO TRUCK CORPORATION

Inventor： Niklas Öberg ,  Anders Eriksson

IPC: B60W10/06 ,  B60W10/11 ,  B60W30/19

Abstract: The invention relates to a method and an arrangement for controlling a gearshift in a vehicle with a transmission (120) comprising a stepped gearing, the transmission (120) being arranged between an engine (110) and at least one driven axle (123), wherein the engine and the transmission are controlled by an electronic control unit (140), The method involves monitoring at least one parameter related to a vehicle operating condition; registering that a manual upshift command is requested; determining a desired shift point and a target engine speed based on a parameter comprising at least current engine speed; and performing an upshift when the target engine speed is reached.

公开(公告)号：US10569775B2

公开(公告)日：2020-02-25

申请号：US15319768

申请日：2014-06-27

Applicant: VOLVO TRUCK CORPORATION

Inventor： Lars Karlsson ,  Anders Eriksson

IPC: B60W30/14 ,  B60T8/24 ,  B60T8/32 ,  B60W10/10 ,  B60W10/18

Abstract: A cruise control arrangement is provided with a cruise control speed function and where the cruise control arrangement is provided with a set cruise speed value and a set brake cruise speed value, and where the cruise control brake function is active when the vehicle travels downhill, where the cruise control arrangement is adapted to activate at least one auxiliary brake when the vehicle speed reaches the set brake cruise speed, to apply a service brake of the vehicle in order to reduce the speed of the vehicle to a predefined first speed if the vehicle speed exceeds the set brake cruise speed when the least one auxiliary brake is delivering full brake power, where the predefined first speed is lower than the set brake cruise speed. Undesired acceleration during downhill travel can be avoided when the brake power of the auxiliary brake is not sufficient. Further, a required downshift can be delayed, which will improve the fuel consumption of the vehicle.