Energy management system for a non-railbound vehicle
First Claim
1. Energy management system for a hybrid electric or electric vehicle comprising an electrical power collector adapted to intermittently collect electrical power from an external power supply track during driving of the vehicle, the energy management system is arranged to distribute electrical power from the electrical power collector to at least one electrical auxiliary load of the vehicle when collecting electrical power from the external power supply track, wherein the energy management system comprises a control unit configured to control operating characteristic of the at least one auxiliary load when the vehicle operates in a power collecting mode, in which electrical power is collected from the external supply track during driving of the vehicle, and when the vehicle operates in a non-power collecting mode, in which electrical power is not collected during driving of the vehicle, whereinthe energy management system comprises vehicle relative position determining means that is arranged to determine the vehicle position in relation to power supply track availability, andthe energy management system is arranged to, when the vehicle operates in a power collecting mode:
- calculate an estimated first time period required for charging an energy storage device associated with the at least one electrical auxiliary load of the vehicle to a predetermined maximal level;
estimate a second time period until the power collector will disconnect from the external power supply track based on the determined vehicle position in relation to an end point of power supply track, andcompare the first and second time periods, and,when the first time period is larger than the second time period,the control unit is arranged to increase the total power consumption level of the at least one auxiliary load, compared with the total power consumption level of the at least one auxiliary load when operating the vehicle in corresponding circumstances in the non-power collecting mode, such that the associated energy storage device will attain, the predetermined maximal level at the time of disconnection from the external power supply track;
wherein the energy storage device comprises an air storage tank and is charged by filling the air storage tank with compressed air, or comprises an hydraulic accumulator and is charged by filling the hydraulic accumulator with pressurised hydraulic fluid, or comprises a cargo refrigerator compartment and is charged by, lowering the temperature of the cargo refrigerator compartment, or comprises the temperature in a driver'"'"'s cabin and is charged by increasing or decreasing the temperature of the driver'"'"'s cabin depending on the circumstances.
1 Assignment
0 Petitions
Accused Products
Abstract
An energy management system is provided for a hybrid electric or electric vehicle including an electrical power collector for intermittently collecting electrical power from an external power supply track during driving of the vehicle. The energy management system is arranged to distribute electrical power from the electrical power collector to at least one electrical auxiliary load of the vehicle when collecting electrical power from the external power supply track. The enemy management system includes a control unit configured to control operating characteristics of the at least one auxiliary load depending on if the vehicle operates in a power collecting mode or in a non-power collecting mode.
12 Citations
20 Claims
-
1. Energy management system for a hybrid electric or electric vehicle comprising an electrical power collector adapted to intermittently collect electrical power from an external power supply track during driving of the vehicle, the energy management system is arranged to distribute electrical power from the electrical power collector to at least one electrical auxiliary load of the vehicle when collecting electrical power from the external power supply track, wherein the energy management system comprises a control unit configured to control operating characteristic of the at least one auxiliary load when the vehicle operates in a power collecting mode, in which electrical power is collected from the external supply track during driving of the vehicle, and when the vehicle operates in a non-power collecting mode, in which electrical power is not collected during driving of the vehicle, wherein
the energy management system comprises vehicle relative position determining means that is arranged to determine the vehicle position in relation to power supply track availability, and the energy management system is arranged to, when the vehicle operates in a power collecting mode: -
calculate an estimated first time period required for charging an energy storage device associated with the at least one electrical auxiliary load of the vehicle to a predetermined maximal level; estimate a second time period until the power collector will disconnect from the external power supply track based on the determined vehicle position in relation to an end point of power supply track, and compare the first and second time periods, and, when the first time period is larger than the second time period, the control unit is arranged to increase the total power consumption level of the at least one auxiliary load, compared with the total power consumption level of the at least one auxiliary load when operating the vehicle in corresponding circumstances in the non-power collecting mode, such that the associated energy storage device will attain, the predetermined maximal level at the time of disconnection from the external power supply track; wherein the energy storage device comprises an air storage tank and is charged by filling the air storage tank with compressed air, or comprises an hydraulic accumulator and is charged by filling the hydraulic accumulator with pressurised hydraulic fluid, or comprises a cargo refrigerator compartment and is charged by, lowering the temperature of the cargo refrigerator compartment, or comprises the temperature in a driver'"'"'s cabin and is charged by increasing or decreasing the temperature of the driver'"'"'s cabin depending on the circumstances. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. Method for controlling operating characteristic of at least, one auxiliary load of a hybrid electric or electric vehicle comprising an electrical power collector for intermittently collecting electrical power from an external power supply track during driving of the vehicle, wherein electrical power may be distributed from the electrical power collector to the at least one electrical auxiliary load of the vehicle when collecting electrical power from the external power supply track, the method comprising the steps of
determining when the vehicle operates in a power collecting mode, in which electrical power is collected from the external supply track during driving of the vehicle, and when the vehicle operates in a non-power collecting mode, in which electrical power is not collected during driving; - and
controlling operating characteristics of the at least one auxiliary load when the vehicle operates in the power collecting mode or in the non-power collecting mode; comprising, when the vehicle is in the power collecting mode; determining vehicle position in relation to the power supply track; calculating an estimated first time period required for charging an energy storage device associated with the at least one electrical auxiliary load of the vehicle to a predetermined maximal level; estimating a time period until the power collector will disconnect from the external power supply track based on the determined vehicle position in relation to an, end point of the power supply track; comparing the first and second time periods, and, when the first time period is larger than the second time period, increasing the total power consumption level of the at least one auxiliary load when operating the vehicle in the power collecting mode, compared with the total power consumption level of the at least one auxiliary load when operating the vehicle in corresponding circumstances in the non-power collecting mode, such that the associated energy storage device will attain the predetermined maximal level at the time of disconnection from the external power supply track; wherein the energy storage device comprises an air storage tank, and the charging, of the energy storage device comprises filling the air storage tank with compressed air, or the energy storage device comprises an hydraulic accumulator and the charging of the energy storage device comprises filling the hydraulic accumulator with pressurised hydraulic fluid, or the energy storage device comprises a cargo refrigerator compartment and the charging of the energy storage device comprises lowering the temperature of the cargo refrigerator compartment, or the energy storage device comprises a driver'"'"'s cabin, and the charging of the energy storage device comprises increasing or decreasing the temperature of the driver'"'"'s cabin depending on the circumstances. - View Dependent Claims (16, 17, 18, 19, 20)
- and
Specification