Module for determining set-point values for control systems in a vehicle
First Claim
1. A module for determining speed set-point values, vref, for a vehicle'"'"'s control systems, comprisingan input unit configured to input a reference speed, vset, which is the speed desired by a driver of the vehicle,a horizon unit configured to determine a horizon by means of received position data and map data of an itinerary made up of route segments with at least one characteristic assigned for each route segment;
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vset ≦
vmax, vref being determined such that the vehicle'"'"'s control systems control the engine of the vehicle so that the speed of the vehicle at least approaches the speed vref;
the processor unit being further configured to determine a control signal with one or more control parameters for the vehicle'"'"'s automatic gear change control unit, based on one or more vehicle-specific values, which vary as the vehicle'"'"'s state varies over time, and a calculated speed set-point value vref across the horizon, the speed set-point value vref being continuously calculated and updated, the speed set-point value vref being a function of how the one or more vehicle-specific values vary along the itinerary.
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Accused Products
Abstract
A module for determining speed set-point values vref for a vehicle'"'"'s control systems includes an input unit configured for input, e.g. by the vehicle'"'"'s driver, of a reference speed vset which is the speed desired by the driver for the vehicle. A horizon unit is configured for determining a horizon by means of received position data and map data of an itinerary made up of route segments with at least one characteristic for each segment. A processor unit is configured for calculating vref across the horizon according to rules pertaining to categories in which segments within the horizon are placed, so that vref is within a range bounded by vmin, and vmax, where vmin≦vset≦vmax. The processor unit is further configured for determining a control signal with control parameters for the vehicle'"'"'s automatic gear change control unit, based on one or more vehicle-specific values and a calculated speed set-point value vref.
8 Citations
17 Claims
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1. A module for determining speed set-point values, vref, for a vehicle'"'"'s control systems, comprising
an input unit configured to input a reference speed, vset, which is the speed desired by a driver of the vehicle, a horizon unit configured to determine a horizon by means of received position data and map data of an itinerary made up of route segments with at least one characteristic assigned for each route segment; - and
a processor unit configured to calculate vref across the horizon according to rules pertaining to categories in which route segments within the horizon are placed, so that vref is within a range bounded by vmin and vmax, where vmin ≦
vset ≦
vmax, vref being determined such that the vehicle'"'"'s control systems control the engine of the vehicle so that the speed of the vehicle at least approaches the speed vref;the processor unit being further configured to determine a control signal with one or more control parameters for the vehicle'"'"'s automatic gear change control unit, based on one or more vehicle-specific values, which vary as the vehicle'"'"'s state varies over time, and a calculated speed set-point value vref across the horizon, the speed set-point value vref being continuously calculated and updated, the speed set-point value vref being a function of how the one or more vehicle-specific values vary along the itinerary. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A module for determining speed set-point values, vref, for a vehicle'"'"'s control systems, comprising
an input unit configured to input a reference speed, vset, which is the speed desired by a driver of the vehicle, a horizon unit configured to determine at least two horizons by means of received position data and map data of an itinerary made up of route segments with at least one characteristic assigned for each route segment; - and
a processor unit configured to calculate vref across a respective horizon according to rules pertaining to categories in which route segments within the horizon are placed, so that vref is within a range bounded by vmin and vmax, where vmin≦
vset ≦
vmax, vref being determined such that the vehicle'"'"'s control systems control the engine of the vehicle so that the speed of the vehicle at least approaches the speed vref;the processor unit being further configured to determine a control signal with one or more control parameters for; (1) the vehicle'"'"'s automatic gear change control unit, based on one or more vehicle-specific values and a calculated speed set-point value vref across the respective horizon; and (2) at least the vehicle'"'"'s cruise control, a respective horizon being determined for each of the vehicle'"'"'s automatic gear change control unit, and the vehicle'"'"'s cruise control. - View Dependent Claims (15)
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16. A module for determining speed set-point values, vref, for a vehicle'"'"'s control systems, comprising
an input unit configured to input a reference speed, vset, which is the speed desired by a driver of the vehicle, a horizon unit configured to determine a horizon by means of received position data and map data of an itinerary made up of route segments with at least one characteristic assigned for each route segment; - and
a processor unit configured to calculate vref across the horizon according to rules pertaining to categories in which route segments within the horizon are placed, so that vref is within a range bounded by vmin and vmax, where vmin ≦
vset ≦
vmax, vref being determined such that the vehicle'"'"'s control systems control the engine of the vehicle so that the speed of the vehicle at least approaches the speed vref;the processor unit being further configured to determine a control signal with one or more control parameters for the vehicle'"'"'s automatic gear change control unit, based on one or more vehicle-specific values and a calculated speed set-point value vref across the horizon, wherein the horizon is updated continuously by; (1) adding new route segments so long as the horizon does not exceed a planned itinerary for the vehicle; and (2) continuous stepping through the route segments within the horizon involving continuously calculating the initial speed of the vehicle vi for each route segment. - View Dependent Claims (17)
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Specification