JP2012001168A - System for distribution of regenerative energy of hybrid vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent wasting of regenerative energy recovered by traveling a vehicle on a downhill road R2.SOLUTION: A downhill information detector 16 detects downhill information including a distance L and a gradient (angle θ) of a downhill part R2 present in a route selected by setting a destination to a car navigation device 15, and the amount of regenerative energy predicted to be obtained when a hybrid vehicle 1 travels on the downhill part R2 is predicted. The amount of charge of a battery 6 is grasped by a battery state-of-charge grasping means 18. The battery 6 is not charged when the amount of charge is equal to or more than a prescribed value, and the regenerative energy is supplied to an air conditioner 19.

Description

  The present invention relates to a regenerative energy distribution device for a regenerative braking hybrid vehicle that generates a regenerative energy while performing a braking action by resistance when a motor that drives a vehicle in cooperation with an engine functions as a generator. .

  The hybrid vehicle is equipped with a motor for generating a driving force. When braking is applied during driving, the motor that is normally used as the driving force acts as a generator, converts the kinetic energy into electrical energy, and supplies it to the battery to charge the battery. Is supplemented (regenerative energy).

  However, if the battery at this time is in a fully charged state, it becomes difficult to supply the electric power generated by the regenerative energy to the battery, and the surplus is eventually converted into thermal energy and discarded.

  In addition, when an air conditioner is operated in a hybrid vehicle, a large amount of power is consumed. For this reason, in a hybrid vehicle, an engine may be driven only to charge a battery when an air conditioner is operated. Thereby, there exists a possibility that a fuel consumption may deteriorate (refer patent document 1).

JP 2004-136699 A

  In view of the above-described problems, an object of the present invention is to avoid discarding regenerative energy collected when a hybrid vehicle travels.

The first invention for solving the above-described problems is
In a regenerative brake type hybrid vehicle that produces a regenerative energy as well as a braking action by resistance when a motor that drives the vehicle in cooperation with the engine functions as a generator,
A battery connected to the motor and storing a charge of at least the regenerative energy;
Battery charging status grasping means for grasping the charging status of the battery;
A vehicle-mounted device mounted on the hybrid vehicle that can be driven without the battery by the charge of the regenerative energy; and
Switching means for supplying the regenerative energy charge for driving the on-vehicle equipment without supplying the charge of the regenerative energy when the charge amount of the battery obtained based on the battery charge status grasping means is a predetermined value or more; ,
A regenerative energy distribution device for a hybrid vehicle comprising:

  The battery mounted on the hybrid vehicle in the present invention can store regenerative energy. In addition, the vehicle-mounted device mounted on the hybrid vehicle can be directly driven by regenerative energy without using a battery. And the regenerative energy which generate | occur | produces at the time of driving | running | working is estimated beforehand, and the switching means which switches whether it uses it for charging a battery, or driving a vehicle mounting apparatus is provided. For this reason, even if the battery is in a fully charged state, all of the regenerative energy generated during traveling can be used. This contributes to improved fuel consumption because it is not necessary to operate the engine to charge the battery.

And while searching and setting in advance the travel route of the vehicle to reach the destination, at least a car navigation device capable of detecting downhill information such as downhill distance and slope,
Regenerative energy predicting means for predicting the regenerative energy that will be obtained from the braking action by using the motor as a generator in the downhill part included in the route from the downhill information in the set planned traveling route; With
The battery charge status grasping means grasps the charge amount of the battery on the premise that the charge of the regenerative energy predicted by the regenerative energy prediction means is charged to the battery,
When the battery charge amount is equal to or greater than a predetermined value, the switching means supplies the regenerative energy generated in the downhill portion of the planned travel route for driving the on-vehicle equipment without supplying the battery. Can be configured.

  In the present invention, since the downhill information in the planned travel route is detected by the car navigation device, the amount of regenerative energy generated can be predicted more quantitatively. Thereby, regenerative energy can be finely distributed.

The second invention for solving the above-described problems is as follows.
In a regenerative brake type hybrid vehicle that produces a regenerative energy as well as a braking action by resistance when a motor that drives the vehicle in cooperation with the engine functions as a generator,
A battery connected to the motor and storing a charge of at least the regenerative energy;
Battery charging status grasping means for grasping the charging status of the battery;
Regenerative energy generation status grasping means for predicting or synchronously detecting the generation status of the regenerative energy in advance;
A vehicle-mounted device mounted on the hybrid vehicle that can be driven without the battery by the charge of the regenerative energy; and
It is determined whether the rechargeable remaining capacity of the battery obtained based on the battery charge status grasping means can charge all or a part of the charge of the regenerative energy grasped by the regenerative energy generation status grasping means. Battery chargeability determination means;
If the determination is negative, switching means for supplying the regenerative energy charge for driving the on-vehicle equipment without supplying the battery,
It is characterized by including.

  In the present invention, the regenerative energy generation status grasping means detects the generation status of the distribution device regenerative energy in advance or synchronously. Moreover, the battery chargeability determination means for determining whether the remaining chargeable capacity of the battery can charge all or a part of the charge of the regenerative energy grasped by the regenerative energy generation state grasping means is provided. Thereby, not only the regenerative energy grasped in advance but also the regenerative energy generated during traveling can be distributed.

And while searching and setting in advance the travel route of the hybrid vehicle to reach the destination, car navigation device capable of detecting at least downhill information such as downhill distance and slope,
Regenerative energy predicting means for predicting the amount of regenerative energy that will be obtained from the braking action by using the motor as a generator in the descending slope part included in the route from the descending slope information in the set scheduled traveling route; With
The regenerative energy prediction means functions as the regenerative energy generation status grasping means,
The battery charging status grasping means grasps the current charging status of the battery or the charging status of the battery when the hybrid vehicle passes through the downhill portion of the planned travel route,
The battery chargeability determination means determines whether or not the remaining chargeable capacity based on the state of charge of the battery can charge all or part of the charge of the regenerative energy predicted by the regenerative energy prediction means,
If the determination is negative, the switching means may be configured to supply the regenerative energy charge for driving the vehicle-mounted device without supplying the battery.

1 is a schematic diagram of a drive system of a hybrid vehicle 1. FIG. It is a block diagram of the regenerative energy distribution apparatus 101 of 1st Example. It is a block diagram of the air conditioner 19. FIG. It is a flowchart which shows the effect | action of the regenerative energy distribution apparatus 101 of 1st Example. It is a figure which shows downhill part R2 in the selected route | root. It is a block diagram of the regenerative energy distribution apparatus 102 of 2nd Example. It is a flowchart which shows the effect | action of the regenerative energy distribution apparatus 102 of 2nd Example. It is a block diagram of the regenerative energy distribution apparatus 103 of 3rd Example.

  Hereinafter, embodiments of the present invention will be described in detail.

  FIG. 1 is a schematic diagram of a drive system of the hybrid vehicle 1, FIG. 2 is a block diagram of a regenerative energy distribution device 101 according to the first embodiment, and FIG.

  Embodiments of the present invention will be described below. In the present specification, the hybrid vehicle 1 will be described, but the same applies to an electric vehicle driven only by a motor.

  A drive system of the hybrid vehicle 1 will be described. As shown in FIG. 1, the shaft 3 that rotatably supports the front wheel 2 of the hybrid vehicle 1 is connected to a motor 4 and an engine 5. The motor 4 and the engine 5 are connected to a power split mechanism (not shown), and the hybrid vehicle 1 uses the driving force of the motor 4 and the engine 5 properly according to the traveling state. For example, when the hybrid vehicle 1 starts, the driving force of the motor 4 is used, and when the traveling speed exceeds a predetermined value, the driving force is switched to the driving force of the engine 5 to travel.

  Electric power for driving and rotating a shaft (not shown) of the motor 4 is supplied from the battery 6. Since the motor 4 is an AC synchronous type, the DC power generated by the battery 6 is converted into AC by the inverter 7 and supplied to the motor 4. The inverter 7 also has a function as a power regeneration inverter that returns the regenerative energy generated when the shaft of the motor 4 rotates in a non-energized state to the battery 6.

  Whether the motor 4 or the engine 5 is used when the hybrid vehicle 1 travels is controlled by the EV ECU 8 (EV electronic control unit). The EV ECU 8 includes a CPU (Central Processing Unit), a ROM storing a program, a RAM that temporarily stores data, a microcomputer that includes a port for communicating with an input / output, and the like.

  Further, as shown in FIG. 1, a brake device (not shown) such as a drum brake and a disc brake mounted on the front wheel 2 and the rear wheel 9 of the hybrid vehicle 1 is supplied with a hydraulic pressure source via a hydraulic pressure adjusting unit 11. 12 (booster). When the driver operates (depresses) the brake pedal 13 provided in the hydraulic power source 12, the brake fluid stored in the hydraulic power source 12 is pushed out via the hydraulic pressure adjusting unit 11, and each of the front wheel 2 and the rear wheel 9. The brake fluid in the brake pipe that is connected to the pipe is pushed out. As a result, the brake acts on the front wheel 2 and the rear wheel 9. The brake ECU 14 controls the brake fluid pressure when the brake pedal 13 is operated, and accurately decelerates or stops the hybrid vehicle 1. The EV ECU 8 cooperates with the brake ECU 14 to optimize the traveling state of the hybrid vehicle 1. For example, when the flake pedal 13 is operated by the driver (when the vehicle is decelerated), the motor 4 is deenergized and recovery of regenerative energy is started.

  The hybrid vehicle 1 of this embodiment is equipped with a regenerative energy distribution device 101 for efficiently recovering the regenerative energy described above. As shown in FIG. 2, the regenerative energy distribution device 101 of the first embodiment includes a car navigation device 15. The car navigation device 15 includes a GPS (Global Positioning System) receiving device 15a, a map database 15b, a vehicle speed sensor, a yaw rate sensor, a gyro sensor (all not shown), and the like. The starting point information and destination information and the route from the starting point to the destination are searched. When a plurality of routes are searched, the driver can operate the car navigation device 15 to select an optimal route.

  The car navigation device 101 includes downhill information detection means 16 for detecting downhill information including the downhill distance and gradient in the selected route based on the information stored in the map database 15b. . A technique for detecting downhill information in a selected route is disclosed in, for example, Japanese Patent Application Laid-Open No. 2009-236714.

  Further, the regenerative energy distribution device 101 predicts the amount of regenerative energy that is predicted to be obtained when the hybrid vehicle 1 travels on the downhill in the route detected by the downhill information detection means 16 described above. The regenerative energy predicting means 17, the battery charge status grasping means 18 for detecting the charge status of the battery 6, the predicted regenerative energy amount and the detected remaining chargeable capacity of the battery 6 are compared, and the regenerative energy is compared. Switching means 22 for switching whether to supply the electric charge to the battery 6 or to the on-vehicle equipment (for example, the air conditioner 19, the audio device 20, the lamp device 21, etc.) mounted on the hybrid vehicle 1. In addition, the arrow of the lower part of the block diagram in FIG. 2 shows the flow of regenerative energy.

  The regenerative energy predicting means 17 predicts the amount of regenerative energy when the hybrid vehicle 1 travels downhill on the selected route. The operation of obtaining regenerative energy when the hybrid vehicle 1 travels downhill will be described. When the hybrid vehicle 1 travels downhill, the driver may take his foot off the accelerator pedal or operate the brake pedal 13. When this action is detected by the brake ECU 14, the EV ECU 8 controls the motor 4 of the hybrid vehicle 1 to be in a non-energized state. As the wheel (front wheel 2) rotates at this time, the shaft of the motor 4 rotates, so that the motor 4 functions as a generator and generates electric power (regenerative energy). In the conventional hybrid vehicle 1, the regenerative energy is returned to the battery 6 to charge the battery 6.

  The battery charge status grasping means 18 grasps and stores the charge status of the battery 6 of the hybrid vehicle 1 (current battery charge amount, remaining chargeable capacity of the battery 6 and the like). If the amount of charge is small, the EV ECU 8 operates the engine 5 in order to charge the battery 6, so that the fuel consumption deteriorates.

  Next, the configuration of the air conditioner 19 mounted on the hybrid vehicle 1 will be described. As shown in FIG. 3, an internal air intake port 24 for inhaling the passenger compartment air and an external air intake port 25 for inhaling outside air are formed in the upstream portion of the air conditioning casing 23 that forms the air flow path. In addition, an inside / outside air switching damper 26 for selectively opening and closing each of the suction ports 24 and 25 is provided. The inside / outside air switching damper 26 is opened and closed by an inside / outside air switching damper motor 27.

  A filter (not shown) for removing dust in the air and a blower motor 28 are attached to the downstream side portion of the inside / outside air switching damper 27. The blower motor 28 (blower) sucks air from the suction ports 24 and 25 and blows air toward the outlets (the defroster outlet 29, the face outlet 31, and the foot outlet 32) described later.

  An evaporator 33 is provided at the downstream side of the blower motor 28 in the air conditioning casing 23. The evaporator 33 includes a compressor 34 that pressurizes the vaporized refrigerant gas so that it is easily liquefied before returning it to a liquid, and a condenser (condenser) that cools the refrigerant gas that has become a high-temperature gas by compression and returns it to a liquid. 35, a receiver 36 for storing the liquid refrigerant, and an expansion valve 37 for blowing out the mist so that the refrigerant is easily vaporized when the liquid refrigerant passes are connected. Thereby, the air blown by the blower motor 28 is cooled by passing through the evaporator 33. The evaporator 33 is provided with a post-evaporator sensor 38 that detects the temperature of the air immediately after passing through the evaporator 33 (intake temperature to the cooler unit).

  An air mix damper 39 and a heater core 41 are provided on the downstream side of the evaporator 33 in the air conditioning casing 23. The air mix damper 39 is opened and closed by an air mix damper motor 42. The heater core 41 heats air using the cooling water of the engine 5 as a heat source. A bypass passage 43 for introducing air to the downstream side of the heater core 41 without passing through the heater core 41 is formed in the air conditioning casing 23. Thereby, the temperature of the air blown out into the vehicle is adjusted by opening and closing the air mix damper 39 and changing the mixing ratio of the warm air passing through the heater core 41 and the cool air passing through the bypass passage 43. In this embodiment, the air mix damper 39 and the air mix damper motor 42 function as a temperature control actuator.

  A defroster outlet 29 for blowing air toward the inner surface of the windshield 44, a face outlet 31 for blowing air toward the upper body of the occupant, A foot outlet 32 for blowing out air toward the foot is formed. Mode switching dampers 45, 46, and 47 are disposed at upstream portions of the respective outlets 29 to 31. The mode switching dampers 45 to 47 are opened and closed by a mode switching damper motor 48.

  The inside / outside air switching damper motor 27, blower motor 28, air mix damper motor 42, mode switching damper motor 48 and compressor 34 are connected to the air conditioner ECU 53 via drive circuits 49, 51, 52, 53 and 54, respectively. Yes. Note that the drive circuit 54 connected to the compressor 34 may include the above-described power storage unit 21 in some cases.

  The air conditioner ECU 55 has a microcomputer composed of a CPU, ROM, RAM, interface, and the like as main components. When the operation panel 56 is turned on, the air conditioner control program stored in the ROM or the like is repeatedly executed every predetermined time. The control signal is output to each drive circuit 49, 51, 52, 53, 54. The drive circuits 49, 51, 52, 53, 54 are connected to the inside / outside air switching damper motor 27, the blower motor 28, the air mix damper motor 42, the mode switching damper motor 48 and the compressor 34 in accordance with a control command from the air conditioner ECU 55. A drive current is passed through each. In addition to the above-described post-evaporator sensor 38, the air conditioner ECU 55 is connected to an operation panel 56, an inside air temperature sensor 57, an outside air temperature sensor 58, a solar radiation sensor 59, and a shift position switch 61.

  The operation panel 56 includes an inside / outside air switching switch for operating the inside / outside air switching damper 26, an air outlet switching switch for operating the mode switching dampers 45 to 47, an auto mode switch for setting a fully automatic control state, and a blower motor 28. A blower control switch for changing the air volume, a temperature control switch for setting the temperature, and an A / T for turning on / off the magnet clutch (opening / closing operation of the refrigerant passage to the evaporator 33) attached to the compressor 34 Various switches such as C switch are provided. The operation panel 56 includes a display unit (for example, an LCD) for displaying each mode and set temperature switched by the various switches.

  The inside air temperature sensor 57 detects the inside air temperature in the passenger compartment and outputs it to the air conditioner ECU 55. The outside air temperature sensor 58 detects the outside air temperature and outputs it to the air conditioner ECU 55. The solar radiation sensor 59 detects the amount of solar radiation and outputs it to the air conditioner ECU 55. The shift position switch 61 detects the position of a shift lever (not shown) and outputs it to the air conditioner ECU 55.

  The operation of the regenerative energy distribution device 101 of the first embodiment will be described with reference to the flowchart of FIG. When the driver (or the passenger of the hybrid vehicle 1) operates the car navigation device 15 to set a destination (step S10), the car navigation device 15 searches for a route to reach the destination (step S20). . Then, the downhill information detection means 16 detects downhill information in the route selected by the driver from the plurality of searched routes (step S30). When the selected route is composed of two flat portions R1 and one downhill portion R2, as shown in FIG. 5, the downhill information detecting means 16 uses the distance L and the gradient (angle) of the downhill portion R2. θ) is detected. Then, the regenerative energy predicting means 17 predicts the regenerative energy amount when the hybrid vehicle 1 travels on the downhill portion R2. Depending on the magnitude of the slope (angle θ) of the descending slope R2, when the driver runs by operating the brake pedal 13, and when driving without operating the brake pedal 13 (without operating the accelerator pedal) Therefore, the value of the coefficient in the calculation algorithm for predicting the amount of regenerative energy may be changed according to the magnitude of the gradient (angle θ).

  Next, the battery charge state grasping means 18 detects the charge amount of the battery 6 of the hybrid vehicle 1 and grasps the remaining chargeable capacity (step S50). Then, the amount of regenerative energy predicted to be obtained by the regenerative energy predicting means 17 is compared with the remaining chargeable capacity of the battery 6, and the charge amount of the battery 6 is a predetermined value (for example, 90% of the maximum charge capacity of the battery 6). If it is above ("Yes" in step S60), the switching unit 22 is operated to supply the regenerative energy predicted to be obtained by the regenerative energy prediction unit 17 to the air conditioner 19 (step S70). (For example, the rotation speed of the compressor 34 of the air conditioner 19 is increased). At this time, the predicted regenerative energy is not supplied to the battery 6. If it is less than the predetermined value (“No” in step S60), the predicted regenerative energy is supplied to the battery 6 and the battery 6 is charged.

  In the conventional hybrid vehicle 1, since the regenerative energy when driving downhill is not predicted, the regenerative energy actually obtained is discarded if the battery 6 is fully charged. However, in the regenerative energy distribution device 101 of the present embodiment, the regenerative energy predicted in advance is switched and supplied to the battery 6 and the air conditioner 19 of the hybrid vehicle 1, so that it is not necessary to discard the regenerative energy. .

  Moreover, since the air conditioning capability of the air conditioner 19 is increased by regenerative energy, the use of the engine 5 for charging the battery 6 can be delayed, which contributes to an improvement in fuel consumption.

  In the regenerative energy distribution apparatus 101 described above, the amount of regenerative energy generated is predicted in advance. However, the “regenerative energy predicting means 17” in the regenerative energy distribution apparatus 101 is set to “regenerative energy generation status grasping means 17 ′” to grasp the regenerative energy generated not only in advance but synchronously, and switch it to the switching means 22. May be switched to the battery 6 or the air conditioner 19 for supply.

  Next, the regenerative energy distribution device 102 of the second embodiment will be described. As shown in FIG. 6, in the regenerative energy distribution device 102 of the second embodiment, the remaining chargeable capacity of the battery 6 obtained based on the battery charge status grasping means 18 is the regenerative energy prediction means 17 (or the regenerative energy generation status). A battery chargeability determination means 62 is provided for determining whether or not all or part of the regenerative energy charge predicted or grasped by the grasping means 17 ′) can be charged. That is, as shown in FIG. 7, when the remaining chargeable capacity of the battery 6 is less than a predetermined value (“No” in step S60), the battery 6 charges the regenerative energy predicted or grasped by the battery charge availability determination means 62. It is determined whether or not it is possible (step S65). If the battery 6 can be charged, the battery 6 is charged as it is (“Yes” in step S65), and if not possible, the battery 6 is supplied to the air conditioner 19 (“No” in step S65).

  Next, the regenerative energy distribution device 103 according to the third embodiment will be described. As shown in FIG. 8, the regenerative energy distribution device 103 according to the third embodiment includes an uphill information detection unit having the same algorithm as the downhill information detection unit 16 in the regenerative energy distribution device 101 according to the first embodiment described above. 63 and power consumption predicting means 64 for predicting power consumed when the hybrid vehicle 1 travels uphill from the climbing information detecting means 63. In the regenerative energy distribution device 103 of the third embodiment, by detecting not only downhill information in the selected route but also uphill information, the regenerative energy obtained on the downhill and the power consumption consumed in the uphill ( Energy) is offset, and if the excess still occurs, the battery 6 is charged or supplied to the air conditioner 19. As a result, the electricity predicted to be used by the hybrid vehicle 1 can be controlled more finely.

  The amount of power consumed by the use of the air conditioner 19 may vary depending on the outside air temperature and traffic conditions. For this reason, the outside air temperature information detected by the outside air temperature sensor 58 (see FIG. 3) and the road traffic information acquired by the road traffic information communication system (VICS (registered trademark), Vehicle Information and Communication System) are used as the regenerative energy. You may add to the calculation algorithm of the prediction means 17. FIG.

  In the present specification, the case of the air conditioner 19 as the power consuming device in the hybrid vehicle 1 has been described. This is because the air conditioner 19 consumes the most electric power among the devices mounted on the hybrid vehicle 1 and is therefore assumed to have a large effect on fuel consumption. However, the on-vehicle equipment to which regenerative energy is supplied may be the audio device 20 or the lamp device 21.

  Although the hybrid vehicle 1 has been described in the present specification, a regenerative energy distribution device for a vehicle (for example, an electric vehicle or a train) that generates regenerative energy may be used.

  The present invention can be used as a regenerative energy distribution device for vehicle-mounted equipment (for example, an air conditioner) mounted on a vehicle (for example, a hybrid vehicle) provided with a motor for driving.

DESCRIPTION OF SYMBOLS 1 Hybrid vehicle 4 Motor 6 Battery 15 Car navigation apparatus 16 Downhill information detection means 17 Regenerative energy prediction means 17 'Regenerative energy generation condition grasping means 18 Battery charge condition grasping means 19 Air conditioner (equipment mounted on vehicle)
20 Audio device (equipment mounted on vehicle)
21 lamp device (equipment mounted on vehicle)
22 Switching means 62 Battery chargeability determination means 101-103 Regenerative energy distribution device R2 Downhill section

Claims (4)

In a regenerative brake type hybrid vehicle that produces a regenerative energy as well as a braking action by resistance when a motor that drives the vehicle in cooperation with the engine functions as a generator,
A battery connected to the motor and storing a charge of at least the regenerative energy;
Battery charging status grasping means for grasping the charging status of the battery;
A vehicle-mounted device mounted on the hybrid vehicle that can be driven without the battery by the charge of the regenerative energy; and
Switching means for supplying the regenerative energy charge for driving the on-vehicle equipment without supplying the charge of the regenerative energy when the charge amount of the battery obtained based on the battery charge status grasping means is a predetermined value or more; ,
A regenerative energy distribution device for a hybrid vehicle comprising: A car navigation device capable of detecting and setting at least downhill information such as distance and slope of downhill, and searching and setting in advance a travel route of the vehicle to reach the destination,
Regenerative energy predicting means for predicting the regenerative energy that will be obtained from the braking action by using the motor as a generator in the downhill part included in the route from the downhill information in the set planned traveling route; With
The battery charge status grasping means grasps the charge amount of the battery on the premise that the charge of the regenerative energy predicted by the regenerative energy prediction means is charged to the battery,
When the battery charge amount is a predetermined value or more, the switching means supplies the regenerative energy generated in the downhill portion of the planned travel route for driving the on-vehicle equipment without supplying the battery. Item 2. A regenerative energy distribution device for a hybrid vehicle according to Item 1. In a regenerative brake type hybrid vehicle that produces a regenerative energy as well as a braking action by resistance when a motor that drives the vehicle in cooperation with the engine functions as a generator,
A battery connected to the motor and storing a charge of at least the regenerative energy;
Battery charging status grasping means for grasping the charging status of the battery;
Regenerative energy generation status grasping means for predicting or synchronously detecting the generation status of the regenerative energy in advance;
A vehicle-mounted device mounted on the hybrid vehicle that can be driven without the battery by the charge of the regenerative energy; and
It is determined whether the rechargeable remaining capacity of the battery obtained based on the battery charge status grasping means can charge all or a part of the charge of the regenerative energy grasped by the regenerative energy generation status grasping means. Battery chargeability determination means;
If the determination is negative, switching means for supplying the regenerative energy charge for driving the on-vehicle equipment without supplying the battery,
A regenerative energy distribution device for a hybrid vehicle comprising: A car navigation device capable of detecting and setting at least downhill information such as the distance and slope of downhill, in advance, searching and setting the travel route of the hybrid vehicle to reach the destination,
Regenerative energy predicting means for predicting the amount of regenerative energy that will be obtained from the braking action by using the motor as a generator in the descending slope part included in the route from the descending slope information in the set scheduled traveling route; With
The regenerative energy prediction means functions as the regenerative energy generation status grasping means,
The battery charging status grasping means grasps the current charging status of the battery or the charging status of the battery when the hybrid vehicle passes through the downhill portion of the planned travel route,
The battery chargeability determination means determines whether or not the remaining chargeable capacity based on the state of charge of the battery can charge all or part of the charge of the regenerative energy predicted by the regenerative energy prediction means,
The regenerative energy of the hybrid vehicle according to claim 3, wherein, when the determination is negative, the switching means supplies the regenerative energy charge for driving the on-vehicle equipment without supplying the battery. Distribution device.

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