公开(公告)号：US11884275B2

公开(公告)日：2024-01-30

申请号：US17427415

申请日：2020-02-12

Applicant: Scania CV AB

Inventor： Ola Hall

IPC: B60W30/18 ,  B60W10/08 ,  B60W10/18 ,  B60T8/24 ,  B60K11/00 ,  F16D65/78

CPC classification number: B60W30/18109 ,  B60T8/245 ,  B60W10/08 ,  B60W10/18 ,  B60K11/00 ,  B60T2201/04 ,  B60T2210/20 ,  B60W2552/15 ,  B60W2710/18 ,  F16D2065/783

Abstract: The present invention relates to a method for controlling a vehicle in association with a descent, the vehicle having a powertrain comprising: a drive unit configured to provide propulsion power; an auxiliary brake device; and a first cooling circuit comprising a first coolant; wherein the drive unit and the auxiliary brake device are arranged to be selectively connected or disconnected with/from the first cooling circuit, wherein the drive unit has a first maximum temperature and the auxiliary brake device has a second maximum temperature higher than the first maximum temperature, the method comprising: controlling the drive unit to reduce the provided propulsion power when the vehicle is approaching an upcoming descent, which fulfils predetermined criteria; disconnecting the drive unit from the first cooling circuit; connecting the auxiliary brake device with the first cooling circuit; and controlling the auxiliary brake device to brake to vehicle down the descent.

公开(公告)号：US10830121B2

公开(公告)日：2020-11-10

申请号：US16061353

申请日：2017-01-11

Applicant: Scania CV AB

Inventor： Zoltan Kardos ,  Ola Hall

IPC: F01P3/20 ,  F01P7/14 ,  F01K9/00 ,  F01K23/14 ,  F02G5/04 ,  F01K15/02 ,  F01K23/06 ,  F01K23/10 ,  F02G5/02

Abstract: A cooling system for a combustion engine and a WHR-system in a vehicle (1) includes a first line (23) directing coolant at a first temperature (T1) to a condenser (18) of the WHR system, a second line (24) directing coolant at a second temperature (T2) to the condenser (18), a valve arrangement (25, 26, 29) by which the flow rate of the coolant in at least one of the lines (23, 24) is adjustable and a control unit (20) configured to control the valve arrangement (25, 26, 29) such that the coolant directed to the condenser (18) from the lines (23, 24) has a temperature and a flow rate which results in a cooling of the working medium in the condenser (18) to a predetermined condensation temperature/pressure at the actual operating condition.

公开(公告)号：US10508589B2

公开(公告)日：2019-12-17

申请号：US16061357

申请日：2017-01-11

Applicant: Scania CV AB

Inventor： Zoltan Kardos ,  Ola Hall

IPC: F28D7/00 ,  F28F27/00 ,  F01P7/16 ,  F01P3/20 ,  F01P7/14 ,  B60H1/00 ,  F01P3/22

Abstract: A method for controlling a cooling system delivering coolant to a heat exchanger (18) in a vehicle (1). During operating conditions when a thermostat (6) in the cooling system is in the partly open position, the method comprises the steps of estimating a desired cooling temperature (T) of a medium in the heat exchanger (18), calculating the coolant flow rate ({dot over (m)}1) through a radiator (7b) and the coolant flow rate ({dot over (m)}2) through a radiator bypass line (9), calculating a coolant flow rate ({dot over (m)}3) and coolant temperature (t3) combination at 10 at which the medium in the heat exchanger (18) is cooled to a desired temperature (T), adjusting the flow regulating mechanism (23) such that coolant at the selected flow rate ({dot over (m)}3) and temperature (t3) combination is directed to the heat exchanger (18).