JPH11103502A - Control device of hybrid vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the exhaust emission control performance of an engine, by judging the exhaust emission control performance of an exhaust emission control means that a motor has when a vehicle starts operating, and controlling the operation/stop of the generator according to the motor based on the judgment result. SOLUTION: It is assumed that the amount of charge of a battery 12 that must immediately generate power by a generator 11 is set to SOC 1. Then, when the amount of charge SOC of the battery is larger than a set value SOC 1, it is not necessary to generate power by operating an engine 10. However, when the following conditions are met, the engine 10 is started to generation power even when the amount of charge SOC is larger than the set value SOC 1. More specifically, when the engine 1 is in operation state up to immediately before a previous vehicle stop, the amount of charge SOC of the battery 12 is less than a set value SOC2(>SOC1), and then a vehicle stop time T is shorter than a set time T1, the engine 10 is immediately started when the vehicle resumes operation and power is generated by the generator 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a control device for controlling a generator, an engine, a motor, and a battery mounted on a hybrid vehicle.

[0002]

2. Description of the Related Art There is known a series hybrid vehicle (SHEV) that generates electric power by driving a generator by an engine and supplies electric power to a traveling motor and a battery, and solves problems of exhaust and fuel consumption of an engine vehicle. while doing,
Attention has been paid to extending the range of electric vehicles (EVs). In the control device of the series hybrid vehicle, when the state of charge SOC of the battery is equal to or more than the set value, the vehicle is running while supplying the charging power of the battery to the motor. When the charged amount of the battery falls below the set value, the generator is driven by the engine, and the generated power of the generator is supplied to the motor to be driven, and is also supplied to the battery for charging. When the charged amount of the battery increases and exceeds the set value again, the engine is stopped and the power generation by the generator is terminated.

[0003]

By the way, in ordinary city running, one running distance is short and running and stopping are often repeated. FIG. 12 shows the state of charge SOC of the battery and the operation (ON) / stop (OFF) state of the generator driving engine when traveling in an urban area with the conventional control device. In such a running pattern, since the amount of charge of the battery charged by the generator during one run is small, the motor is driven only by the charge power of the battery immediately after the start of running, but after a while, the charge amount of the battery S
The OC becomes lower than the set value, and the engine is started to start power generation. However, even if you start power generation and charge the battery, the vehicle will be stopped soon,
Even if the charged amount exceeds the set value, the charged amount will not be sufficient. Therefore, at the time of the next vehicle operation, the above-described operation is repeated again. When such a traveling pattern is repeated, the exhaust gas purifying catalyst of the engine is used at a low temperature, and the exhaust gas purifying performance is reduced.

An object of the present invention is to improve the exhaust gas purifying performance of an engine in a hybrid vehicle.

[0005]

[Means for Solving the Problems]

(1) The invention of claim 1 is applied to a control device for a hybrid vehicle that generates electric power by driving a generator by a prime mover when a charged amount of a battery falls below a set value 1. And
The vehicle includes: a determination unit configured to determine an exhaust gas purification performance of the exhaust purification unit mounted on the prime mover at the time of starting the vehicle operation; and a control unit configured to control operation / stop of the generator by the prime mover based on a determination result of the determination unit. (2) In the control device for a hybrid vehicle according to claim 2, when the control means determines that the exhaust purification performance is present by the determination means, even if the charged amount of the battery is larger than the set value 1, the prime mover is started. Drives a generator to generate power. (3) In the control device for a hybrid vehicle according to claim 3, the determination means determines the exhaust gas purification performance based on the driving state of the prime mover at the time of the previous vehicle stop, the charge amount of the battery, and the vehicle stop time. It is like that. (4) In the control device for a hybrid vehicle according to a fourth aspect, the motor is operated until immediately before the vehicle is stopped last time and the charge amount of the battery is set to the set value 2 (where set value 2>
If the vehicle stop time is shorter than the set value, it is determined that the exhaust gas purification performance is present. (5) The control device for a hybrid vehicle according to claim 5, wherein the determining means determines, based on a driving condition of the prime mover when the vehicle stopped last time, and a determination condition based on a charge amount of the battery and an elapsed time after stopping the prime mover. The exhaust gas purifying performance is determined. (6) In the control device for a hybrid vehicle according to claim 6, the determining means determines that the exhaust gas purifying performance is present when the prime mover is operated until immediately before the last vehicle stop and the determination condition is satisfied. . (7) The control device for a hybrid vehicle according to claim 7 further includes a temperature detecting means for detecting a temperature of the exhaust gas purifying means.
Further, the exhaust gas purification performance is determined based on a determination condition based on the charge amount of the battery and the detected temperature value of the exhaust gas purification means. (8) In the control device for a hybrid vehicle according to claim 8, the determination means determines that the exhaust gas purifying performance is present when the prime mover is operated until immediately before the last vehicle stop and the determination condition is satisfied. (9) The control device for a hybrid vehicle according to the ninth aspect includes a temperature detection unit that detects a temperature of the exhaust purification unit, and the determination unit performs an exhaust purification based on an exhaust purification rate corresponding to the detected temperature value of the exhaust purification unit. The performance is determined.

[0006]

【The invention's effect】

(1) According to the invention of claim 1, the exhaust gas purifying performance of the exhaust gas purifying means provided in the prime mover at the time of starting the vehicle operation is determined, and the operation / stop of the generator by the prime mover is controlled based on the determination result. As a result, even when a traveling pattern in which one traveling distance is short, such as when traveling in an urban area, is repeated, the exhaust gas purification performance of the engine can be improved. (2) According to the second aspect of the present invention, when it is determined that the exhaust gas purifying performance is present, the generator drives the generator by the prime mover from the start of the vehicle operation to generate power even when the charge amount of the battery is larger than the set value 1. Therefore, the same effect as that of the first aspect can be obtained. (3) According to the third and fourth aspects of the present invention, the operation state of the prime mover at the time of the previous vehicle stop, the battery charge amount,
The exhaust gas purification performance is determined based on the vehicle stop time. For example, the prime mover is operated until immediately before the last vehicle stop, and the charge amount of the battery is set to the set value 2 (however, the set value 2
> Set value 1) and the vehicle stop time is shorter than the set value, an accurate determination is made by determining that there is exhaust purification performance, and the one-time mileage in city driving or the like is reduced. Even when a short running pattern is repeated, the exhaust gas purification performance of the engine can be improved. (4) According to the fifth and sixth aspects of the present invention, exhaust gas purification is performed based on the operating state of the prime mover at the time of the previous vehicle stop and the determination condition based on the amount of charge of the battery and the elapsed time after the stop of the prime mover. Performance is now determined. For example, when the prime mover is operated immediately before the vehicle stops immediately before and the determination condition is satisfied, it is determined that the exhaust gas purification performance is present, so that an accurate determination is made.
Even if the running pattern repeats a short running distance,
The exhaust gas purification performance of the engine can be improved. (5) According to the seventh and eighth aspects of the present invention, the exhaust gas is exhausted on the basis of the operating state of the prime mover at the time of the previous vehicle stop, and the determination condition based on the charge amount of the battery and the temperature detection value of the exhaust purification means. Purification performance was determined. For example, when the prime mover is driven immediately before the last stop of the vehicle and the determination condition is satisfied, it is determined that the exhaust gas purification performance is present. Is repeated, the exhaust gas purification performance of the engine can be improved. (6) According to the ninth aspect of the present invention, since the exhaust gas purification performance is determined based on the exhaust gas purification rate according to the temperature detection value of the exhaust gas purification means, an accurate determination is made, and the vehicle can be used in an urban area or the like. Even in the case of repeating a traveling pattern in which one traveling distance is short, the exhaust purification performance of the engine can be improved.

[0007]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention. The series hybrid vehicle according to one embodiment includes a generator driving engine 10, a generator 11, a battery 12, a motor 13, a drive system 14 including a transmission and a reduction gear, drive wheels 15, and a control device 16. . The motor 13 serving as a traveling drive source receives power supply from both the generator 11 and the battery 12. When the battery 12 is charged with the required output power of the motor 13, the engine 10 and the generator 11 are not driven,
Electric power is supplied to the motor 13 only from the battery 12. When the charge amount of the battery 12 cannot satisfy the required output of the motor 13 or when the charge amount SOC of the battery 12 becomes lower than the set value, the engine 10 is started to start power generation by the generator 11. Then, the generated power is supplied to the motor 13 and the battery 12. When the charge amount of the battery 12 satisfies the required output of the motor 13 or when the charge amount of the battery 12 becomes equal to or more than a set value, the engine 10 is stopped and the power generation by the generator 11 is terminated. .

The control unit 16 is composed of a microcomputer and its peripheral parts, and controls input and output of the motor 13, controls charging and discharging of the battery 12 and calculates the SOC, generation control of the generator 11, start and stop of the engine 10. And throttle control, on / off control of the power supply relay 17 of the battery 12, and the like. A water temperature sensor 18 is attached to the engine 10 and connected to the control device 16. A catalyst 19 is provided in an exhaust pipe of the engine 10, and a temperature sensor 20 is attached to the catalyst 19 and is connected to the control device 16.

FIG. 2 shows a change in the temperature of the catalyst after the engine is stopped. FIG. 3 shows a relationship between a general catalyst temperature and an exhaust gas purification rate. After the engine is stopped, the temperature of the catalyst gradually decreases with time. Further, the catalyst has low purification performance at a certain temperature or lower, and has high purification performance at a higher temperature.

FIG. 4 predicts the purification performance of the catalyst after the engine is stopped based on the temperature change of the catalyst after the engine is stopped shown in FIG. 2 and the relationship between the catalyst temperature and the exhaust gas purification rate shown in FIG. As is apparent from the prediction result, the catalyst maintains the purification performance for a while after the engine is stopped, but loses the purification performance after a certain time has elapsed. In the city running by the conventional control device shown in FIG. 12 described above, since the engine is repeatedly started in a state where the purification performance has disappeared after the time t1, the exhaust performance deteriorates.

In this embodiment, power generation control is performed in consideration of the purification characteristics shown in FIG. Here, generator 1
Assuming that the amount of charge of the battery 12 that must generate power by using the SOC 1 is SOC1, the amount of charge of the battery 12 is SOC
Is larger than the set value SOC1, it is not necessary to operate the engine 10 to generate power. However, in this embodiment, when the following condition is satisfied, the engine 10 is started to generate electric power even when the charge amount SOC is larger than the set value SOC1. That is, (a) the engine 10 is in operation until immediately before the last vehicle stop, and (b) the battery 12
Is smaller than the set value SOC2 (> SOC1) and (c) the vehicle stop time T is shorter than the set time T1, the engine 10
To start power generation by the generator 11. Thereby, the exhaust gas purification performance can be improved as a whole.

Here, the set value SOC2 is the value of the battery 1
If the vehicle runs only on the charging power of the battery 12 until the charge amount SOC of No. 2 reaches the set value SOC1, the charge amount is a charge amount that allows the vehicle to travel a predetermined traveling distance. For example, assuming that an average traveling distance in one urban driving is a predetermined traveling distance, if the state of charge SOC is equal to or more than the set value SOC2, it is determined that there is a high possibility that the vehicle can travel only with the charging power of the battery 12 in this traveling. Is done. Therefore, in this case, the power generation due to the operation of the engine 10 is stopped. On the other hand, if the state of charge SOC is smaller than the set value SOC2, it is unlikely that the vehicle can run with only the charging power of the battery 12 in this traveling, and the state of charge SOC
Is equal to or less than the set value SOC1, and it is determined that power must be generated by the generator 11. Engine 1 on the way
If the engine 10 is started to start power generation, it is better to start the engine 10 and start power generation from the beginning, since the engine 10 can be started while the purification performance of the catalyst 19 is maintained. It can contribute to improvement. Therefore, in this case, the engine 10 is started immediately when the operation of the vehicle is restarted, the generator 11 is driven, and power generation is started.

The set time T1 is a time from the stop of the engine to the time t2 as shown in FIG. 4, and is a time during which the catalyst 19 maintains a high purification performance.

FIG. 5 is a flowchart showing an engine control program. The operation of this embodiment will be described with reference to this flowchart. The control device 16 executes this control program when a key switch (not shown) of the vehicle is turned on. In step 1, the state of charge SOC of the battery 12 is calculated, and in step 2, the calculated state of charge SOC is compared with a set value SOC 1. If the state of charge SOC is equal to or less than the set value SOC1, the process proceeds to step 7, in which the engine 10 is immediately started to start power generation by the generator 11, and power is supplied to the motor 13 and the battery 12.

On the other hand, when the charge amount SOC is equal to the set value SOC1
If the number is larger than the predetermined value, the process proceeds to step 3, where it is checked whether the engine 10 was operating immediately before the key switch was turned off last time. This means that when the key switch is turned off, a flag is set if the engine 10 is running,
If the engine 10 is stopped, the flag is cleared, and the operation and stop state of the engine immediately before the key switch is turned off may be stored. If the engine 10 has not been operated immediately before the last time the key switch was turned off, the process proceeds to step 8, and since the purifying performance maintaining time of the catalyst 19 has passed, even if the engine 10 is started and power generation is started at this time, It is determined that it does not contribute to the improvement of the purification performance, and the power generation by the operation of the engine 10 is stopped.

If the engine 10 has been operating immediately before the key switch is turned off, the routine proceeds to step 4, where the state of charge SOC
Is compared with the set value SOC2. The state of charge SOC is equal to the set value S.
If it is equal to or greater than OC2, the process proceeds to step 8. Since it is highly possible that the current traveling can be performed only with the charging power of the battery 12, the power generation by the operation of the engine 10 is canceled. On the other hand, when the state of charge SOC is smaller than the set value SOC2, the process proceeds to step 5, and the time from when the key switch is turned off last time to when the key switch is turned on this time, that is, the vehicle stop time T is calculated. Then, in step 6, the vehicle stop time T is compared with the set time T1, and if the vehicle stop time T is shorter than the set time T1, the process proceeds to step 7 because the catalyst 19 maintains a high purification performance, and the engine 10 To start power generation by the generator 11.
On the other hand, if the vehicle stop time T is equal to or longer than the set time T1, the purification performance does not change any time the engine 10 is started.
Postpones the power generation by driving.

As described above, even when the state of charge SOC of the battery is larger than the set value SOC1 at which the power generation must be immediately performed by the generator 11, (a) the engine 10 is in the operating state until immediately before the last stop of the vehicle. ,and,
(B) The charge amount SOC of the battery 12 is equal to the set value SOC2.
If the vehicle stop time T is shorter than the set time T1, the engine 10 is started immediately and the generator 11 starts generating power when the vehicle operation is restarted. Thereby, the exhaust gas purification performance can be improved as a whole.

FIG. 6 shows the state of charge SOC of the battery and the operation (ON) of the generator driving engine 10 when the vehicle travels in an urban area under the same conditions as the conventional control device shown in FIG.
/ Stop (OFF) state. In the case of the conventional control device shown in FIG. 12, the engine is started four times when the catalyst temperature is lowered. On the other hand, according to the control device of this embodiment shown in FIG. 6, the engine is started once when the catalyst temperature is low, and the engine is started when the purification performance of the catalyst is sufficiently maintained. One start, a total of two times. In other words, under this driving condition, the emission amount of the harmful substances according to the present embodiment is suppressed to less than half as compared with the conventional control device.

-Variation of One Embodiment of the Invention- The determination condition for engine operation / stop according to the above-described embodiment, (b) the state of charge SOC of the battery 12 is set to a set value SO
Instead of the determination condition that is shorter than C2 and (c) the vehicle stop time T is shorter than the set time T1, (d) the state of charge SOC
A description will be given of a modified example in which the determination condition is based on and the elapsed time after the key switch is turned off.

FIG. 7 shows a map for determining the operation / stop of the engine based on the state of charge SOC and the elapsed time after the key switch is turned off. In the figure, max is the maximum charge amount. FIG. 8 is a flowchart showing an engine control program according to a modification. The same processing steps as those in FIG. 5 are denoted by the same step numbers, and the description will be focused on the differences. As described above, the shorter the elapsed time after the engine is stopped, the higher the purification performance of the catalyst. Therefore, even when the engine is started, the emission of harmful substances can be suppressed. If the state of charge SOC is high and the elapsed time after stopping the engine is short, the engine is started when the vehicle is restarted to generate power, and the state of charge
If the value of C is further increased, the traveling distance based on only the charging power of the battery is increased, so that the exhaust gas purification performance can be improved as a whole. However, even if the SOC is high, if the elapsed time after stopping the engine is long, the purification performance of the catalyst will be low, so the vehicle will run only with the remaining battery capacity (SOC-SOC1) without starting the engine. By doing so, the exhaust gas purification performance can be improved as a whole. On the other hand, when the state of charge SOC is low, it is better to immediately start the engine and start power generation when vehicle operation resumes,
Exhaust gas purification performance can be improved as a whole rather than using up the remaining battery capacity (SOC-SOC1).

Therefore, even when the state of charge SOC of the battery is larger than the set value SOC1 at which the generator 11 must immediately generate power (S2),
(A) The engine 10 is in the operating state immediately before the last vehicle stop (S3), and (D) In FIG.
When the intersection of C and the elapsed time after the key switch is turned off is below the solid line (S11), that is, when the SOC is high and the elapsed time after the key off is short, or when the charged amount is low, Then, the engine 10 is started immediately when vehicle operation is resumed, and power generation by the generator 11 is started. Thereby, an effect similar to that of the above-described embodiment can be obtained.

-Other Modifications of Embodiment of the Invention- The determination condition (d) of the modification described above may be as follows. That is, since the elapsed time after the key switch is turned off and the catalyst temperature are in a proportional relationship, (d) the charge amount S shown in FIG.
Instead of the engine operation / stop determination map based on the OC and the elapsed time after the key switch is turned off, (e) the determination is made based on the engine operation / stop determination map based on the SOC SOC and the catalyst temperature shown in FIG.

FIG. 10 is a flowchart showing an engine control program according to a modification. The same processing steps as those in FIG. 5 are denoted by the same step numbers, and the description will be focused on the differences. Even if the state of charge SOC of the battery is larger than the set value SOC1 at which power generation must be performed immediately by the generator 11 (S2), (A) the engine 10 is in the operating state until immediately before the previous vehicle stop (S2).
3) And (e) In FIG. 9, when the intersection of the charge amount SOC and the catalyst temperature is above the solid line (S21), that is, when the charge amount SOC is high and the catalyst temperature is high, the vehicle When the operation is restarted, the engine 10 is started immediately and the power generation by the generator 11 is started. Thereby, an effect similar to that of the above-described embodiment can be obtained.

-Other Modifications of One Embodiment of the Invention-Instead of the engine operation / stop determination conditions (a) to (c) of the above-described embodiment, (f) catalyst temperature shown in FIG. And the exhaust gas purification rate.

FIG. 11 is a flow chart showing a modified example of the engine control program. Steps for performing the same processes as those in FIG. 5 are denoted by the same step numbers and will be described focusing on the differences. Battery charge SOC
Is larger than the set value SOC1 that must be immediately generated by the generator 11 (S2),
(F) When the catalyst temperature K is equal to or higher than the set temperature K1 (S31)
, The engine 10 is started immediately when the vehicle operation is restarted, and the power generation by the generator 11 is started. Here, as the set temperature K1, the characteristics of the catalyst temperature and the exhaust gas purification rate as shown in FIG. 3 are measured, and the temperature at which the exhaust gas purification rate becomes higher may be selected. Thereby, an effect similar to that of the above-described embodiment can be obtained.

In the configuration of the above embodiment, the battery 12 determines the battery, the generator driving engine 10 determines the prime mover, the generator 11 determines the generator, the catalyst 19 determines the exhaust gas purifying means, and the control device 16 determines. The means and the control means constitute the temperature sensor 20, and the temperature sensor 20 constitutes the temperature detection means.

In the above-described embodiment and its modifications, a series hybrid vehicle has been described as an example. However, the present invention is not limited to a series hybrid vehicle, and the battery charge in a parallel hybrid vehicle may be reduced. It can be added to power generation control by engine operation at the time. Further, in the above-described embodiment and its modifications, the exhaust gas purifying means of the engine using the catalyst has been described as an example, but the exhaust gas purifying means of the engine is not limited to the catalyst.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment.

FIG. 2 is a diagram showing a change in temperature of a catalyst after the engine is stopped.

FIG. 3 is a diagram showing a general relationship between a catalyst temperature and an exhaust gas purification rate.

FIG. 4 is a diagram showing the purification performance of a catalyst after the engine is stopped.

FIG. 5 is a flowchart showing an engine control program according to one embodiment.

FIG. 6 is a diagram showing an engine control result according to one embodiment.

FIG. 7 is a diagram showing a determination map of engine operation / stop based on a state of charge SOC and an elapsed time after a key switch is turned off.

FIG. 8 is a flowchart illustrating an engine control program according to a modification of the embodiment.

FIG. 9 is a diagram showing a determination map of engine operation / stop based on a charge amount SOC and a catalyst temperature.

FIG. 10 is a flowchart showing an engine control program according to another modification of the embodiment.

FIG. 11 is a flowchart showing an engine control program according to another modification of the embodiment.

FIG. 12 is a diagram showing an engine control result of a conventional control device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 Generator driving engine 11 Generator 12 Battery 13 Motor 14 Drive system 15 Drive wheel 16 Control device 17 Power relay 18 Water temperature sensor 19 Catalyst 20 Temperature sensor

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroyuki Hirano 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Prefecture Nissan Motor Co., Ltd. (72) Inventor Tsuyoshi Aso 2 Takaracho, Kanagawa-ku, Yokohama City, Kanagawa Nissan Motor Co., Ltd. 72) Inventor Ryuichi Wellguchi, Nissan Motor Co., Ltd., 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Prefecture (72) Inventor Yutaro Kaneko, 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Prefecture, Nissan Motor Co., Ltd.

Claims (9)

[Claims] 1. A control apparatus for a hybrid vehicle that generates electric power by driving a generator by a prime mover when a charged amount of a battery falls to a set value of 1 or less. A control device for a hybrid vehicle, comprising: determination means for determining exhaust gas purification performance; and control means for controlling operation / stop of the generator by the prime mover based on a determination result of the determination means. 2. The control device for a hybrid vehicle according to claim 1, wherein the control unit determines that the charge amount of the battery is larger than the set value 1 when the determination unit determines that the exhaust purification performance is present. However, a control apparatus for a hybrid vehicle, wherein the power generator drives the generator to generate power from the start of vehicle operation. 3. The control device for a hybrid vehicle according to claim 1, wherein the determination unit is configured to determine a driving state of the prime mover at a previous vehicle stop, a charge amount of the battery, and a vehicle stop time. A control device for a hybrid vehicle, which determines the exhaust gas purification performance based on the following. 4. The control device for a hybrid vehicle according to claim 3, wherein the determination unit determines that the prime mover is operated until immediately before the last vehicle stop, and that the charge amount of the battery is equal to a set value 2 (the set value 2). > Set value 1), and when the vehicle stop time is shorter than the set value, it is determined that there is exhaust purification performance. 5. The control device for a hybrid vehicle according to claim 1, wherein the determination means includes an operation state of the prime mover at the time of a previous vehicle stop, a charge amount of the battery, and a stop of the prime mover. A control device for a hybrid vehicle, wherein an exhaust gas purification performance is determined based on a determination condition based on a later elapsed time. 6. The control device for a hybrid vehicle according to claim 5, wherein the determination unit determines that the exhaust gas purifying performance is present when the prime mover is operated until immediately before the last vehicle stop and the determination condition is satisfied. A control device for a hybrid vehicle. 7. The control device for a hybrid vehicle according to claim 1, further comprising: a temperature detection unit configured to detect a temperature of the exhaust gas purification unit, wherein the determination unit determines a state of the engine when the vehicle stopped last time. A control device for a hybrid vehicle, wherein an exhaust gas purification performance is determined based on an operation state of the battery and a determination condition based on a charged amount of the battery and a temperature detection value of the exhaust gas purification means. 8. The control device for a hybrid vehicle according to claim 7, wherein the determination unit determines that the exhaust gas purifying performance is present when the prime mover is operated until immediately before the last vehicle stop and the determination condition is satisfied. A control device for a hybrid vehicle, comprising: 9. The control device for a hybrid vehicle according to claim 1, further comprising: a temperature detection unit configured to detect a temperature of the exhaust purification unit, wherein the determination unit detects a temperature of the exhaust purification unit. A hybrid vehicle control device for determining an exhaust gas purification performance based on an exhaust gas purification rate according to the following.