Vehicle

• US 5,892,346 A
• Filed: 02/20/1996
• Issued: 04/06/1999
• Est. Priority Date: 02/27/1995
• Status: Expired due to Term

• Current Assignee: Kabushikikaisha Equos Research
• Original Assignee: Kabushikikaisha Equos Research
• Inventors: Nakashima, Hideki, Iwami, Takahiro, Moroto, Shuzo
• Primary Examiner(s): IP, SHIK LUEN PAUL
• Application Number:
  US08/603,324
• Time in Patent Office: 1,141 Days
• Field of Search: 318/139, 318/587, 318/560-696, 364/424.02, 364/424.06, 364/444, 364/424.01, 180/168, 180/65.1, 180/167, 395/90, 901/1, 414/227, 320/15, 320/22, 320/39, 320/13, 320/48, 320/43, D10/125
• US Class Current: 318/587
• CPC Class Codes: B60K 6/485 Motor-assist type
• CPC Class Codes: B60L 15/20 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• CPC Class Codes: B60L 2240/62 Vehicle position
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: B60L 58/13 Maintaining the SoC within a determined range
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• CPC Class Codes: B60W 10/26 for electrical energy, e.g. batteries or capacitors
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 20/12 using control strategies taking into account route information estimation or calculation of non-directly measurable driving parameters B60W40/00
• CPC Class Codes: B60W 2050/146 Display means
• CPC Class Codes: B60W 2510/244 Charge state
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 50/0097 Predicting future conditions
• CPC Class Codes: G01C 21/3469 Fuel consumption; Energy use; Emission aspects
• CPC Class Codes: G05D 1/0217 in accordance with energy consumption, time reduction or distance reduction criteria
• CPC Class Codes: H02J 7/0063 with circuits adapted for supplying loads from the battery
• CPC Class Codes: H02J 7/007182 in response to battery voltage
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02T 10/40 : Engine management systems
• CPC Class Codes: Y02T 10/62 : Hybrid vehicles
• CPC Class Codes: Y02T 10/64 : Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y02T 10/84 : Data processing systems or methods, management, administration
• CPC Class Codes: Y02T 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y04S 10/126 : the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
• CPC Class Codes: Y10S 903/903 : having energy storing means, e.g. battery, capacitor

Abstract

A vehicle, which is either an electric vehicle or a hybrid vehicle, capable of achieving low-pollution emissions and saving energy by maximizing use of the capacity of the battery. A navigation ECU receives input identifying a starting location where the battery is charged, a stopover location, and a destination where battery recharging is planned, and calculates travel distances from the starting location to the stopover location and to the destination based on geographic data for the starting location, the stopover location and the destination, and schedules electric power consumption corresponding to distance travelled, based on the respective calculated distances, to assign a battery residual capacity usage value for each leg of the trip. A vehicle ECU supplies electric power from the battery to the motor in accordance with that schedule.

Claims

1. A vehicle comprising:

an electric motor for driving drive wheels of the vehicle;

a battery for supplying electric power to said electric motor;

a motor drive control unit for controlling the electric motor driving the vehicle by controlling electric power transfer from the battery to the electric motor;

battery residual capacity detection means for detecting actual residual charge of the battery;

input means for inputting schedule information including route information pertaining to a travel route for a trip;

schedule information memory means for storing said schedule information;

provisional position memory means for storing geographic information, included in said schedule information, relating to geographic positions between a starting location where the battery is charged and a destination having facilities for recharging the battery;

distance calculating means for calculating total distance from the starting location to the destination, based on the geographic information stored in said provisional position memory means; and

power consumption programming means for, prior to the start of the trip, scheduling consumption of electric power by said electric motor in accordance with distance travelled, based on the total distance calculated by said distance calculating means and the detected residual capacity of the battery.

2. A vehicle according to claim 1 further comprising an internal combustion engine for driving said drive wheels.

3. A vehicle according to claim 1, wherein said power consumption programming means schedules power consumption in accordance with distance travelled by dividing the battery residual capacity by the calculated total distance.

4. A vehicle according to claim 1 further comprising charge time calculating means for determining time available for recharging the battery during a scheduled stop.

5. A vehicle according to claim 4, wherein said charge time calculating means determines the time available for recharging the battery based on date and time for arrival at a battery charging facility and the date and time for departure from said battery charging facility.

6. A vehicle according to claim 1, wherein the schedule information memory means stores the name and address or phone number for predetermined locations along the travel route.

7. A vehicle according to claim 1, wherein the schedule information includes starting and arrival dates and times for each of plural predetermined locations along the travel route.

8. A vehicle according to claim 1, wherein the schedule information includes information whether or not a battery recharging facility is available at each of plural predetermined locations along the travel route.

9. The vehicle according to claim 1, wherein said input means comprises a touch panel.

10. The vehicle according to claim 1, wherein said battery residual capacity detection means defines, as a discharged state of the battery, a minimum capacity value which allows the battery to be used repeatedly and economically and further defines, as a fully charged state of the battery, a maximum capacity value which allows the battery to be used repeatedly and economically.

11. The vehicle according to claim 1, wherein said input means is an electric diary for transmitting said schedule information by radio wave.

12. The vehicle according to claim 1, wherein said input means is an electric diary for transmitting said schedule information by infrared rays.

13. The vehicle according to claim 1, wherein said input means is a personal computer for transmitting said schedule information by radio wave.

14. The vehicle according to claim 1, wherein said input means is a personal computer for transmitting said schedule information by infrared rays.

15. The vehicle according to claim 1, wherein said input means is an IC card.

16. A vehicle comprising:

an electric motor for driving drive wheels of the vehicle;

a battery for supplying electric power to said electric motor;

a motor drive control unit for controlling the electric motor driving the vehicle by controlling electric power transfer from the battery to the electric motor;

battery residual capacity detection means for detecting actual residual capacity of the battery;

input means for inputting schedule information including map data and trip information pertaining to a trip including at least one destination;

schedule information memory means for storing said schedule information;

a navigation system for searching said map data to determine a travel route to said one destination;

provisional position memory means for storing geographic information, included in said schedule information, relating to geographic positions between a starting location where the battery is charged and said one destination where battery recharging is planned;

distance calculating means for calculating total distance along the travel route determined by said navigation system, based on geographic information stored in said provisional position memory means; and

power consumption programming means for, prior to start of the trip, scheduling consumption of electric power by said electric motor in accordance with distance travelled, based on the total distance calculated by said distance calculating means and the detected residual capacity of the battery.

17. A vehicle according to claim 16 further comprising an internal combustion engine for driving said drive wheels.

18. A vehicle according to claim 16, wherein said power consumption programming means schedules power consumption in accordance with distance travelled by dividing the battery residual capacity by the calculated total distance.

19. A vehicle according to claim 16 further comprising charge time calculating means for determining time available for recharging the battery during a scheduled stop.

20. A vehicle according to claim 19, wherein said charge time calculating means determines the time available for recharging the battery based on date and time for arrival at a battery charging facility and the date and time for departure from said battery charging facility.

21. A vehicle according to claim 16, wherein the schedule information memory means stores the name and address or phone number for predetermined locations along the travel route.

22. A vehicle according to claim 16, wherein the schedule information includes starting and arrival dates and times for each of plural predetermined locations along the travel route.

23. A vehicle according to claim 16, wherein the schedule information includes information whether or not a battery recharging facility is available at each of plural predetermined locations along the travel route.

24. A vehicle comprising:

an electric motor for driving drive wheels of the vehicle;

a battery for supplying electric power to said electric motor;

a motor drive control unit for controlling the electric motor driving the vehicle by controlling electric power transfer from the battery to the electric motor;

battery residual capacity detection means for detecting actual residual charge of the battery;

input means for inputting schedule information including route information pertaining to a travel route for a trip;

schedule information memory means for storing said schedule information;

provisional position memory means for storing geographic information, included in said schedule information, relating to geographic positions between a starting location where the battery is charged and a first destination having facilities for recharging the battery, and between said first destination and a second destination having facilities for recharging the battery;

charge time decision means for determining, from said schedule information, whether time available for recharging at the first destination is less than the time required for a full recharging wherein battery is recharged from a battery residual capacity of 0% to a battery residual capacity of 100%;

distance calculating means for calculating a first travel distance from a present starting location to the first destination and a second travel distance from the first destination to a second destination based on the geographic information stored in said provisional position memory means;

battery residual capacity decision means for calculating a battery residual capacity value to be reserved for arrival at said first destination, when said charge time decision means has determined that the time available for recharging at said first destination is less than the time required for said full recharging and when said second travel distance is longer than said first travel distance; and

power consumption programming means for scheduling, prior to departure from said starting location, consumption of electric power by said electric motor in accordance with distance travelled, based on the travel distances obtained by said distance calculating means and on a battery residual capacity for said first distance which is obtained by subtracting the calculated reserved battery residual capacity value from the battery residual capacity detected by said battery residual capacity detection means.

25. A vehicle according to claim 24 further comprising an internal combustion engine for driving said drive wheels.

26. A vehicle according to claim 24, wherein said power consumption programming means schedules power consumption for said first distance by dividing said battery residual capacity value by said first travel distance.

27. A vehicle according to claim 24 wherein said battery residual capacity decision means is adapted to compensate the battery residual capacity after the present journey when presently charging.

28. A vehicle according to claim 24 further comprising charge time calculating means for determining time available for recharging the battery during a scheduled stop.

29. A vehicle according to claim 28, wherein said charge time calculating means determines the time available for recharging the battery based on an arrival date and time at the first destination and a departure date and time from the first destination.

30. A vehicle according to claim 24, wherein the schedule information memory means stores the name and address or phone number for predetermined locations along the travel route.

31. A vehicle according to claim 24, wherein the schedule information includes starting and arrival dates and times for each of plural predetermined locations along the travel route.

32. A vehicle according to claim 24, wherein the schedule information includes information whether or not a battery recharging facility is available at each of plural predetermined locations along the travel route.

33. A vehicle comprising:

an electric motor for driving drive wheels of the vehicle;

a battery for supplying electric power to said electric motor;

a motor drive control unit for controlling the electric motor driving the vehicle by controlling electric power transfer from the battery to the electric motor;

battery residual capacity detection means for detecting actual residual charge of the battery;

input means for inputting schedule information including route information pertaining to a travel route for a trip;

schedule information memory means for storing said schedule information;

a navigation system for determining a travel route to a specified destination;

provisional position memory means for storing geographic information, included in said schedule information, relating to geographic positions between a starting location where the battery is charged and a first destination having facilities for battery recharging, and between the first destination and a second destination having facilities for battery recharging;

charge time decision means for determining whether or not the time available for recharging at said first destination is less than the time required to recharge the battery from a battery residual capacity of 0% to 100%;

distance calculating means for calculating distances along the determined travel route including a first distance from the starting location to the first destination and a second distance from the first destination to the second destination based on the geographic information stored in said provisional position memory means;

battery residual capacity decision means for calculating a battery residual capacity to be reserved for arrival at said first destination, when said charge time decision means has determined that the time available for recharging at said first destination is less than the time required for said full recharging and when said second travel distance is longer than said first travel distance; and

power consumption programming means for, prior to departure from said starting location, scheduling consumption of electric power by said electric motor in accordance with distance travelled, based on the travel distances obtained by said distance calculating means and on a battery residual capacity value for said first travel distance which is obtained by subtracting the calculated reserved battery residual capacity from the battery residual capacity detected by said battery residual capacity detection means.

34. A vehicle according to claim 33 further comprising an internal combustion engine for driving said drive wheels.

35. A vehicle according to claim 33, wherein said power consumption programming means schedules power consumption for said first distance by dividing said battery residual capacity value for said first travel distance, by said first travel distance.

36. A vehicle according to claim 33 wherein said battery residual capacity decision means is adapted to compensate the battery residual capacity after the present journey when presently charging.

37. A vehicle according to claim 33 further comprising charge time calculating means for determining time available for recharging the battery during a scheduled stop.

38. A vehicle according to claim 33, wherein the schedule information memory means stores the name and address or phone number for predetermined locations along the travel route.

39. A vehicle according to claim 33, wherein the schedule information includes starting and arrival dates and times for each of plural predetermined locations along the travel route.

40. A vehicle according to claim 33, wherein the schedule information includes information whether or not a battery recharging facility is available at each of plural predetermined locations along the travel route.

41. A vehicle according to claim 33, wherein said charge time calculating means determines the time available for recharging the battery based on an arrival date and time at the first destination and a departure date and time from the first destination.