Abstract: A method for controlling a motor vehicle, comprising: retrieving road gradient data relating to an expected travelling route of the motor vehicle; based on at least the retrieved road gradient data and on a motor vehicle mass, simulating a required value of a braking power related variable, which required value is needed to prevent a vehicle speed from increasing above a preset desired vehicle speed in an upcoming downhill slope; determining an available value of the braking power related variable of at least one auxiliary brake of the motor vehicle; and based on the determined available value and the simulated required value of the braking power related variable, controlling the vehicle speed and/or at least one brake actuator of the motor vehicle such that the vehicle speed does not increase above the preset desired vehicle speed in the upcoming downhill slope.

Abstract: A method for controlling a motor vehicle, comprising: retrieving road gradient data relating to an expected travelling route of the motor vehicle; based on at least the retrieved road gradient data and on a motor vehicle mass, simulating a required value of a braking power related variable, which required value is needed to prevent a vehicle speed from increasing above a preset desired vehicle speed in an upcoming downhill slope; determining an available value of the braking power related variable of at least one auxiliary brake of the motor vehicle; and based on the determined available value and the simulated required value of the braking power related variable, controlling the vehicle speed and/or at least one brake actuator of the motor vehicle such that the vehicle speed does not increase above the preset desired vehicle speed in the upcoming downhill slope.

Abstract: Methods, systems, and computer program products are provided for control of a combustion engine in a vehicle. At least one future speed profile for an actual speed of the vehicle during a road section is simulated based on information about the road section, and that coasting will be applied during the road section. An applicability for coasting during the road section is evaluated. Subsequently, it is evaluated whether the combustion engine may be shut down during a coasting for at least a part of the road section. The evaluation of the shutdown of the combustion engine is based on whether one or several system conditions for engine shutdown have been met, on one or several properties for one or several brake systems in the vehicle, and on a shutdown period, when the combustion engine could be shut down. The combustion engine is then controlled based on this evaluation.

Abstract: The present invention presents a method and a system for the control of preparatory measures during a road section, for at least one system. First, one or several parts of a road section are identified, during which parts one or several engines comprised in the vehicle may be shut down. Such identification is carried out when the road section is ahead of the vehicle, that is to say before the vehicle has entered the road section. The identification is based on available information about the road section. Subsequently it is determined whether at least one preparatory measure for at least one respective system in the vehicle needs to be carried out, in order to facilitate that one or several of the engines may be shut down. Subsequently, the preparatory measures are controlled based on the determination of the need to carry out the at least one preparatory measure.

Abstract: A method for running a vehicle (100) that includes a combustion engine (101) which can selectively be connected to a driveshaft (104, 105). When the vehicle (100) is in motion and is approaching a downgrade, determining whether the engine (101) can be disconnected from the driveshaft (104, 105) for at least a first period of time (T1), and disconnecting the driveshaft (104, 105) for at least the first period of time (T1); and the engine (101) also is switched off for the first period (T1). A system that performs the method and a vehicle that performs it are disclosed.

Abstract: Methods and systems are provided for control of a combustion engine in a vehicle. In operation, at least one future speed profile for an actual speed of the vehicle is simulated during a road section ahead based on information about the road section and on knowledge that coasting with the combustion engine shut down will be applied during the road section. Subsequently, based on the future speed profile, a starting point in time is determined, when the combustion engine will need to be started for forward driving the vehicle and/or to brake the vehicle. Subsequently, a starting point brought forward in time is determined based on the need for a forward driving or braking force arising, where the starting point brought forward in time precedes the starting point in time. Subsequently, the combustion engine is controlled to be started at the starting point brought forward in time.

Abstract: A method and a system for controlling a cruise control and a transmission in a vehicle over the course of a road section, wherein prior to the road section, the vehicle has applied coasting and utilizes the cruise control. A reference speed vref utilized in the cruise control during the coasting is lowered to a lowest permitted speed vmin defined for the road section if the lowering is deemed applicable. A comparison of a drive force Fdd requested from an engine system in the vehicle with a threshold value Flim for the drive force is also carried out. The coasting is then suspended if the requested drive force Fdd exceeds the threshold value Flim for the drive force.

Abstract: A method and a system for choosing a transmission mode in a vehicle over the course of a road section, wherein the vehicle has applied coasting prior to this road section and wherein a highest permitted speed vmax is defined for the road section, below which an actual speed for the vehicle should be kept. A simulation of a future speed profile vsim_Gear for a possible gear position for a gearbox in the vehicle is conducted on the basis of a road slope obtained from map data in combination with vehicle positioning information and wherein the simulation simulates, when the road section lies ahead of the vehicle, an actual speed for the vehicle over the course of the road section. Next, an evaluation is carried out of whether a suspension of the coasting in favor of the possible gear position is recommended, wherein the possible gear position is deemed recommendable if a highest value vsim_Gear_max for the future speed profile exceeds the highest permitted speed vmax.

Abstract: Methods and systems are provided for control of a combustion engine in a vehicle. In operation, at least one future speed profile for an actual speed of the vehicle is simulated during a road section ahead based on information about the road section and on knowledge that coasting with the combustion engine shut down will be applied during the road section. Subsequently, based on the future speed profile, a starting point in time is determined, when the combustion engine will need to be started for forward driving the vehicle and/or to brake the vehicle. Subsequently, a starting point brought forward in time is determined based on the need for a forward driving or braking force arising, where the starting point brought forward in time precedes the starting point in time. Subsequently, the combustion engine is controlled to be started at the starting point brought forward in time.

Abstract: Methods, systems, and computer program products are provided for control of a combustion engine in a vehicle. At least one future speed profile for an actual speed of the vehicle during a road section is simulated based on information about the road section, and that coasting will be applied during the road section. An applicability for coasting during the road section is evaluated. Subsequently, it is evaluated whether the combustion engine may be shut down during a coasting for at least a part of the road section. The evaluation of the shutdown of the combustion engine is based on whether one or several system conditions for engine shutdown have been met, on one or several properties for one or several brake systems in the vehicle, and on a shutdown period, when the combustion engine could be shut down. The combustion engine is then controlled based on this evaluation.

Abstract: The present invention presents a method and a system for the control of preparatory measures during a road section, for at least one system. First, one or several parts of a road section are identified, during which parts one or several engines comprised in the vehicle may be shut down. Such identification is carried out when the road section is ahead of the vehicle, that is to say before the vehicle has entered the road section. The identification is based on available information about the road section. Subsequently it is determined whether at least one preparatory measure for at least one respective system in the vehicle needs to be carried out, in order to facilitate that one or several of the engines may be shut down. Subsequently, the preparatory measures are controlled based on the determination of the need to carry out the at least one preparatory measure.

Abstract: Disclosed are a method and a control system adapted to making it possible to use, or prolong a use of, a higher transmission mode in a vehicle. The control system comprises a simulation unit configured for simulating at least one future speed profile for an actual speed for the vehicle along a section of road ahead of the vehicle, which simulation is conducted at a time when the section of road is still ahead of the vehicle, and is based on information related to a gradient of the section of road. The system further comprises an evaluation unit configured for evaluating whether a raising of an actual speed for the vehicle is appropriate to achieving the making possible or prolongation, which evaluation is based on the simulation of at least one future speed profile, and a use unit configured for using the evaluation during control of the actual speed.

Abstract: A system for governing a reference speed vref_dhsc for a downhill speed control system in a vehicle in connection with a downhill gradient. A simulation unit simulates at least one future speed profile vsim for an actual vehicle speed over a section of road in front of the vehicle, based on topographic information. An establishing unit establishes whether the reference speed vref_dhsc is to be allocated an increased reference speed vref_dhsc_schwung. This establishing is based on a comparison of the simulated future speed profile vsim with a permitted magnitude of the increased reference speed vref_dhsc_schwung and/or with an infringement speed vsl. An allocation unit allocates the value of the increased reference speed vref_dhsc_schwung to the reference speed vref_dhsc if this has been established.

Abstract: A method for running of a vehicle having a combustion engine which can selectively be connected to a driveshaft (104, 105) for propulsion of the vehicle, the vehicle can be run in a first mode (M1) with the engine connected to the driveshaft (104, 105) and in which fuel supply to the engine is substantially shut off, in a second mode (M2) with the engine disconnected from the driveshaft (104, 105) and a third mode like the first mode, but with the fuel supply not cut off. On a downgrade, determining whether running in the first mode (M1) will result in a speed increase, and then running in the second mode (M2) if running it in the first mode (M1) would cause a speed increase.

Abstract: A method and a system for choosing a transmission mode in a vehicle over the course of a road section, in which a simulation of at least one future speed profile vsim for the road section ahead of the vehicle is conducted on the basis of a road slope for the road section. A time period Tappl is determined on the basis of the at least one simulated future speed profile vsim, which ensures that a lower transmission mode is chosen before a lowest permitted speed vmin defined for the road section and/or a set speed vset for a speed control is reached. During the determined time period Tappl, the transmission mode which is utilized when the simulation is made is applicable for the vehicle. After this, it is evaluated whether a lower transmission mode than the currently used transmission mode shall be chosen. A lower transmission mode shall be chosen if the time period Tappl for which the current transmission mode is applicable is shorter than a first threshold period Tlim.

Abstract: A method and a system for choosing a transmission mode in a vehicle over the course of a road section, wherein the vehicle has applied coasting prior to this road section and wherein a highest permitted speed vmax is defined for the road section, below which an actual speed for the vehicle should be kept. A simulation of a future speed profile vsim—Gear for a possible gear position for a gearbox in the vehicle is conducted on the basis of a road slope obtained from map data in combination with vehicle positioning information and wherein the simulation simulates, when the road section lies ahead of the vehicle, an actual speed for the vehicle over the course of the road section. Next, an evaluation is carried out of whether a suspension of the coasting in favor of the possible gear position is recommended, wherein the possible gear position is deemed recommendable if a highest value vsim—Gear—max for the future speed profile exceeds the highest permitted speed vmax.

Abstract: A method for running a vehicle (100) that includes a combustion engine (101) which can selectively be connected to a driveshaft (104, 105) to deliver driving force to the driveshaft (104, 105) for propulsion of the vehicle (100). When the vehicle (100) is in motion, determining whether the vehicle (100) is approaching a downgrade and, when it is approaching the downgrade, disconnecting the engine (101) from the driveshaft (104, 105) before the vehicle (100) reaches the downgrade. Also a system and a vehicle are disclosed.

Abstract: A method and a system for choosing a transmission mode in a vehicle over the course of a road section, in which a simulation of at least one future speed profile vsim for the road section ahead of the vehicle is conducted on the basis of a road slope for the road section. A time period Tappl is determined on the basis of the at least one simulated future speed profile vsim, which ensures that a lower transmission mode is chosen before a lowest permitted speed vmin defined for the road section and/or a set speed vset for a speed control is reached. During the determined time period Tappl, the transmission mode which is utilized when the simulation is made is applicable for the vehicle. After this, it is evaluated whether a lower transmission mode than the currently used transmission mode shall be chosen. A lower transmission mode shall be chosen if the time period Tappl for which the current transmission mode is applicable is shorter than a first threshold period Tlim.

Abstract: A method and a system for controlling a cruise control and a transmission in a vehicle over the course of a road section, wherein prior to the road section, the vehicle has applied coasting and utilizes the cruise control. A reference speed vref utilized in the cruise control during the coasting is lowered to a lowest permitted speed vmin defined for the road section if the lowering is deemed applicable. A comparison of a drive force Fdd requested from an engine system in the vehicle with a threshold value Flim for the drive force is also carried out. The coasting is then suspended if the requested drive force Fdd exceeds the threshold value Flim for the drive force.

Abstract: A system for governing a reference speed vref—dhsc for a downhill speed control system in a vehicle in connection with a downhill gradient. A simulation unit simulates at least one future speed profile vsim for an actual vehicle speed over a section of road in front of the vehicle, based on topographic information. An establishing unit establishes whether the reference speed vref—dhsc is to be allocated an increased reference speed vref—dhsc—schwung. This establishing is based on a comparison of the simulated future speed profile vsim with a permitted magnitude of the increased reference speed vref—dhsc—schwung and/or with an infringement speed vsl. An allocation unit allocates the value of the increased reference speed vref—dhsc—schwung to the reference speed vref—dhsc if this has been established.