CN112483268B - Control method and device for range-extended engine and vehicle - Google Patents
Control method and device for range-extended engine and vehicle Download PDFInfo
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- CN112483268B CN112483268B CN202011289606.3A CN202011289606A CN112483268B CN 112483268 B CN112483268 B CN 112483268B CN 202011289606 A CN202011289606 A CN 202011289606A CN 112483268 B CN112483268 B CN 112483268B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/06—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
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- Automation & Control Theory (AREA)
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Abstract
The invention discloses a control method and a control device for a range-extended engine and a vehicle, wherein the method comprises the following steps: acquiring horizontal acceleration information and vehicle body inclination angle information of the whole vehicle; judging whether the horizontal acceleration is greater than a preset acceleration threshold value or not, and judging whether the duration time is greater than a first preset time period or whether the inclination angle of the vehicle body is greater than a preset inclination angle or not, wherein the duration time is greater than a second preset time period; if yes, controlling the engine to stop; if not, judging whether the horizontal acceleration and the vehicle body inclination angle meet a first preset condition or not; and if so, controlling the engine to stop. The invention obtains information from the existing vehicle controller for comprehensive judgment, controls the engine to stop and protect, and avoids the problems of engine failure under the limit working condition that the transverse horizontal acceleration of the vehicle is overlarge or the transverse vehicle body inclination angle is overlarge. The structure of the engine does not need to be modified, the maintenance cost is low, the engine can have smaller volume, and the passenger compartment has larger space.
Description
Technical Field
The invention relates to an engine control method, in particular to a control method and device of a range-extended engine and a vehicle.
Background
With the trend of energy conservation and emission reduction in China, hybrid vehicle models are favored by vast vehicle factories and customers, and the range-increasing hybrid vehicle models are gradually increased in recent years. The difference between the extended-range hybrid electric vehicle and other hybrid electric vehicles is that the engine does not participate in the driving of the whole vehicle, only drives the generator to generate electricity to charge the battery, and the battery provides electric energy to drive the motor.
The range-extended hybrid electric vehicle has small requirement on the displacement of an engine, and a range extender (the engine and a generator) and a motor are arranged in an engine compartment of the vehicle at the same time, so that the range extender is required to be small in size and high in integration level, the general engine has about 1000ml of displacement, and the number of two-cylinder or three-cylinder engines is large. Due to the space arrangement, the engine is not placed vertically as the traditional power is, and the engine may need to be placed horizontally. When the range-extended engine is placed horizontally, the ground clearance is insufficient or the depth of an oil pan is insufficient, and the oil pan does not have enough volume to contain engine oil, so that the engine cannot absorb the engine oil under certain limit working conditions of the whole vehicle, and the engine has faults of cylinder pulling, tile melting and the like.
Disclosure of Invention
The problem that engine faults can be caused due to the fact that the range-extended engine cannot suck engine oil under certain extreme working conditions is solved.
The present invention in a first aspect provides a method of controlling a range-extended engine, the method comprising:
acquiring horizontal acceleration information and vehicle body inclination angle information of the whole vehicle;
judging whether the horizontal acceleration is greater than a preset acceleration threshold value or not according to the horizontal acceleration information and the vehicle body inclination angle information, wherein the duration time is greater than a first preset time period or whether the vehicle body inclination angle is greater than a preset inclination angle or not, and the duration time is greater than a second preset time period;
if yes, controlling the engine to stop;
if not, judging whether the horizontal acceleration and the vehicle body inclination angle meet a first preset condition or not;
and if so, controlling the engine to stop.
Further, according to the horizontal acceleration information and the vehicle body inclination information, it is determined whether the horizontal acceleration is greater than a preset acceleration threshold value, and whether the duration is greater than a first preset time period or whether the vehicle body inclination is greater than a preset inclination, and whether the duration is greater than a second preset time period, the method further includes:
and when the horizontal acceleration is greater than a preset acceleration threshold, the duration is less than a first preset time period, the inclination angle of the vehicle body is greater than a preset inclination angle, and the duration is less than a second preset time period, controlling the engine to normally work.
Further, the judging whether the horizontal acceleration and the vehicle body inclination angle meet a first preset condition includes:
when the horizontal acceleration is not greater than a preset acceleration threshold value and the inclination angle of the vehicle body is not greater than a preset inclination angle, decomposing the gravity acceleration of the whole vehicle onto the horizontal acceleration to obtain a combined acceleration;
judging whether the combined acceleration is greater than a preset acceleration threshold or not, wherein the duration is greater than a third preset time period;
and if so, judging that the horizontal acceleration and the vehicle body inclination angle meet a first preset condition.
Further, the horizontal acceleration information is a transverse horizontal acceleration value of the whole vehicle, and the vehicle body inclination angle information is a left and right vehicle body inclination angle value.
Further, the first preset time period, the second preset time period and the third preset time period are equal.
The present invention in its second aspect provides a control device for a range-extended engine, the control device comprising:
the information acquisition module is used for acquiring horizontal acceleration information and vehicle body inclination angle information of the whole vehicle;
the first judgment module is used for judging whether the horizontal acceleration is greater than a preset acceleration threshold value or not;
the second judgment module is used for judging whether the inclination angle of the vehicle body is larger than a preset inclination angle or not;
the timing module is used for timing the duration;
the time judgment module is used for judging whether the duration time is greater than a first preset time period or a second preset time period;
the third judgment module is used for judging whether the horizontal acceleration and the vehicle body inclination angle meet a first preset condition or not;
and the control module is used for controlling the engine to stop when the horizontal acceleration is greater than a preset acceleration threshold value, the duration is greater than a first preset time period, or the vehicle body inclination angle is greater than a preset inclination angle, and the duration is greater than a second preset time period, or when the horizontal acceleration and the vehicle body inclination angle meet a first preset condition.
Further, the control module comprises a first control unit, and the first control unit is used for controlling the engine to stop when the horizontal acceleration is greater than a preset acceleration threshold value, the duration time is greater than a first preset time period or the inclination angle of the vehicle body is greater than a preset inclination angle, and the duration time is greater than a second preset time period.
Further, the vehicle further comprises a second control unit, and the second control unit is used for controlling the engine to stop when the horizontal acceleration and the vehicle body inclination angle meet a first preset condition.
The invention also provides a vehicle which comprises an engine, a range-extended engine controller, a vehicle control unit and a control device of the range-extended engine, wherein the control device of the range-extended engine is arranged in the range-extended engine controller or the vehicle control unit.
Further, the control device of the range-extended engine acquires horizontal acceleration information and vehicle body inclination angle information of the whole vehicle through the vehicle control unit.
The embodiment of the invention has the following beneficial effects:
the control method of the range-extended engine disclosed by the invention judges according to the horizontal acceleration of the vehicle and the inclination angle information of the vehicle body, and controls the range-extended engine, thereby avoiding the problem that the engine fails to suck oil to cause engine failure when the vehicle is in a limit working condition of overlarge horizontal acceleration in the transverse direction or overlarge inclination angle of the vehicle body.
The invention does not need to modify the structure of the engine, increase the capacity of the oil pan of the engine or modify the structure of the vehicle body, only needs to configure the control device and the control method of the range-extended engine, has low modification cost, and can ensure that the engine has smaller volume and the passenger compartment has larger space.
Drawings
In order to more clearly illustrate the control method, device and vehicle of the range-extended engine according to the present invention, the drawings required for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flowchart of a control method for a range-extended engine according to embodiment 1 of the present invention;
fig. 2 is a block diagram showing a control device for a range-extended engine according to embodiment 1 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention can be applied to the range-extended engine and the electric vehicle with the range-extended engine. The problem of engine failure caused by the fact that the engine cannot suck oil under extreme working conditions such as left-right steering and sideslip of high-speed large turning is solved. For example, horizontally arranged extended range engines due to space limitations.
Referring to fig. 1, a flow chart of a method for controlling a range-extended engine according to an embodiment of the present invention is shown, where the method includes:
and S101, acquiring horizontal acceleration information and vehicle body inclination angle information of the whole vehicle.
In addition, in the embodiment, lateral horizontal acceleration information and vehicle body left and right inclination information of the vehicle during operation are acquired, where the lateral direction refers to the left and right direction of the vehicle, that is, the horizontal acceleration information is a lateral horizontal acceleration value of the whole vehicle, and the vehicle body inclination information is a left and right inclination value of the vehicle body.
S103, judging whether the horizontal acceleration is greater than a preset acceleration threshold value or not according to the horizontal acceleration information and the vehicle body inclination angle information, wherein the duration time is greater than a first preset time period or whether the vehicle body inclination angle is greater than a preset inclination angle or not, and the duration time is greater than a second preset time period;
and S105, if so, controlling the engine to stop.
Specifically, in the present embodiment, it is determined whether the vehicle is in an extreme operating condition such as side-slip, high-speed steering, or the like, based on the horizontal acceleration and the body inclination information of the vehicle. When the horizontal acceleration of the vehicle is greater than the preset acceleration threshold or the inclination angle of the vehicle body is greater than the preset inclination angle, the vehicle may be in an extreme working condition that is prone to engine failure. The preset acceleration threshold is a preset horizontal acceleration threshold of the whole vehicle under a normal working condition, and can be 0.4-0.6g, preferably 0.5g, and g is gravity acceleration. The preset inclination angle is a preset left-right inclination angle threshold value of the vehicle body under the normal working condition, and can be 13-16 degrees, and is preferably 15 degrees. The duration refers to the time count of the continuously obtained horizontal acceleration or body inclination information. The first preset time period and the second preset time period may be set to 3 to 5 seconds, preferably 3 seconds, according to the information acquisition condition. For example, in some embodiments, the first predetermined time period is 3 seconds, and engine-off protection is controlled when the lateral horizontal acceleration is greater than 0.5g and the duration exceeds 3 seconds, or when the body inclination is greater than 15 ° and the duration exceeds 3 seconds.
The purpose of setting the first preset time period and the second time period is to avoid the engine stop protection controlled by the range-extended engine controller when the vehicle passes a pit or presses a stone in the running process. In this embodiment, the first preset time period and the second preset time period may not be equal, or may be equal.
Specifically, according to the horizontal acceleration information and the vehicle body inclination information, it is determined whether the horizontal acceleration is greater than a preset acceleration threshold, and the duration is greater than a first preset time period or the vehicle body inclination is greater than a preset inclination, and the duration is greater than a second preset time period, further including: and when the horizontal acceleration is greater than a preset acceleration threshold, the duration is less than a first preset time period, the inclination angle of the vehicle body is greater than a preset inclination angle, and the duration is less than a second preset time period, controlling the engine to normally work.
Specifically, the method comprises the following steps: when the horizontal acceleration is smaller than a preset acceleration threshold value and the inclination angle of the vehicle body is smaller than a preset inclination angle, controlling the engine to normally work; when the horizontal acceleration is larger than a preset acceleration threshold value but the duration time is smaller than a first preset time period, controlling the engine to normally work; and when the inclination angle of the vehicle body is larger than a preset inclination angle but the duration time is smaller than a second preset time period, controlling the engine to normally work.
S107, if not, judging whether the horizontal acceleration and the vehicle body inclination angle meet a first preset condition;
and S109, if so, controlling the engine to stop.
Specifically, the determining whether the horizontal acceleration and the vehicle body inclination angle satisfy a first preset condition includes:
s1071, when the horizontal acceleration is not greater than a preset acceleration threshold value and the inclination angle of the vehicle body is not greater than a preset inclination angle, decomposing the gravity acceleration of the whole vehicle onto the horizontal acceleration to obtain a combined acceleration;
s1072, judging whether the combined acceleration is greater than a preset acceleration threshold value or not, and the duration is greater than a third preset time period;
s1073, if yes, judging that the horizontal acceleration and the vehicle body inclination angle meet a first preset condition.
Specifically, when the vehicle inclines left and right, but the left and right inclination angles of the vehicle body do not exceed the preset inclination angle, and the lateral horizontal acceleration does not exceed the preset acceleration threshold, the gravity acceleration can be resolved onto the horizontal acceleration through a calculation formula, and if the combined acceleration exceeds the preset acceleration threshold and the duration is greater than a third preset time period, the engine is controlled to be stopped for protection. The calculation formula of the combined acceleration is (sin α g + α), wherein α is the inclination angle degree of the vehicle body, and g is the gravity acceleration.
In the embodiment, when the combined acceleration (sin α g + α) is greater than the preset acceleration threshold and the duration is greater than the third preset time period, the engine is controlled to be stopped and protected. The third preset time is equal to a preset time period threshold, and in this embodiment, the third preset time period may be equal to the first preset time period and the second preset time period.
It should be noted that, the control method of the present application is performed in real time, when the engine is controlled to be stopped, the control method keeps running, and when it is detected that the horizontal acceleration information and the vehicle body inclination angle information of the entire vehicle meet the engine starting condition, the horizontal acceleration is not greater than the preset acceleration threshold, the vehicle body inclination angle is not greater than the preset inclination angle, and the duration is greater than the fourth preset time period, the engine is controlled to be restarted. It should be noted that the fourth preset time period may be preset to 2-7 minutes, and may be 2, 3, 4, 5 or 7 minutes in some embodiments. For example, after the engine is shut down and protected because the horizontal acceleration or the vehicle body inclination angle does not meet the condition, the range-extended engine controller continues to acquire the horizontal acceleration information and the vehicle body inclination angle information of the vehicle in real time, and when the horizontal acceleration and the vehicle body inclination angle of the vehicle meet the starting condition of the engine and no shutdown condition occurs within a time period of more than 5 minutes, the engine can be controlled to restart.
The embodiment of the present invention further provides a control device for a range-extended engine, configured to configure and implement the control method for the range-extended engine, as shown in fig. 2, which is a block diagram of the control device for the range-extended engine according to the embodiment of the present invention, and the control device includes:
the information acquisition module is used for acquiring horizontal acceleration information and vehicle body inclination angle information of the whole vehicle;
the first judgment module is used for judging whether the horizontal acceleration is greater than a preset acceleration threshold value or not;
the second judgment module is used for judging whether the inclination angle of the vehicle body is larger than a preset inclination angle or not;
the timing module is used for timing the duration;
the time judgment module is used for judging whether the duration time is greater than a first preset time period or a second preset time period;
the third judgment module is used for judging whether the transverse horizontal acceleration and the vehicle body inclination angle meet a first preset condition or not;
and the control module is used for controlling the engine to stop when the horizontal acceleration is greater than a preset acceleration threshold value, the duration is greater than a first preset time period, or the vehicle body inclination angle is greater than a preset inclination angle, and the duration is greater than a second preset time period, or when the horizontal acceleration and the vehicle body inclination angle meet a first preset condition.
Specifically, the control module comprises a first control unit, and the first control unit is used for controlling the engine to stop when the horizontal acceleration is greater than a preset acceleration threshold value, the duration is greater than a first preset time period, or the inclination angle of the vehicle body is greater than a preset inclination angle, and the duration is greater than a second preset time period.
Specifically, the vehicle further comprises a second control unit, wherein the second control unit is used for controlling the engine to stop when the horizontal acceleration and the vehicle body inclination angle meet a first preset condition, namely when the combined acceleration is larger than a preset acceleration threshold value and the duration time is larger than a third preset time period.
The invention also provides a vehicle, an engine, a stroke engine controller, a vehicle control unit and a control device of the stroke-extended engine, wherein the control device of the stroke-extended engine is arranged in the stroke-extended engine controller or the vehicle control unit.
Specifically, the control device of the range-extended engine acquires horizontal acceleration information and vehicle body inclination angle information of the whole vehicle through the vehicle control unit. In the embodiment, the engine is controlled by the range-extended engine controller, and the range-extended engine controller acquires the horizontal acceleration information and the inclination angle information of the whole vehicle through the whole vehicle controller. In some embodiments, the information may also be obtained by an airbag controller or an anti-lock system controller.
In the embodiment of the invention, the extended range engine control method is implemented in the concrete steps that firstly, the extended range engine controller acquires the transverse horizontal acceleration information and the inclination angle information of the whole vehicle through the whole vehicle controller, the first judgment module, the second judgment module, the timing module and the time judgment module comprehensively judge according to the acquired whole vehicle information and time information, and the control module controls the engine to be shut down and protected under the extreme working condition. When the transverse horizontal acceleration of the vehicle is greater than a preset acceleration threshold value and the duration time is greater than a first preset time period, controlling the engine to stop for protection; when the left and right inclination angles of the vehicle body are larger than the preset inclination angle and the duration time is longer than a second preset time period, controlling the engine to stop for protection; and when the horizontal acceleration is not greater than the preset acceleration threshold and the inclination angle of the vehicle body is not greater than the preset inclination angle, judging whether the combined acceleration is greater than the preset acceleration threshold or not and the duration time is greater than a third preset time period, and if so, controlling the engine to stop for protection.
In this embodiment, the control method of the range-extended engine is continuously performed in real time, after the engine is controlled to be stopped, when the monitored horizontal acceleration is not greater than the preset acceleration threshold and the vehicle body inclination is not greater than the preset inclination, and no stop condition exists within a fourth preset time period, it is determined that the engine restart condition is met, and the range-extended engine controller sends a control instruction to control the engine to restart.
According to the control method of the range-extended engine, disclosed by the invention, the transverse horizontal acceleration and the vehicle body inclination angle information of the whole vehicle are obtained through the whole vehicle controller for calculation and judgment, and the engine is controlled to be stopped and protected under the limit working condition, so that the problem that the engine fails to suck oil to cause engine failure under the limit working condition that the transverse horizontal acceleration or the transverse vehicle body inclination angle of the vehicle is too large is avoided. The invention does not need to modify the structure of the engine, increase the capacity of the oil pan of the engine or modify the structure of the vehicle body, the modification cost is low, the engine can have smaller volume, and the passenger compartment has larger space.
It should be noted that: the precedence order of the above embodiments of the present invention is only for description, and does not represent the merits of the embodiments. And specific embodiments thereof have been described above. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the device and server embodiments, since they are substantially similar to the method embodiments, the description is simple, and the relevant points can be referred to the partial description of the method embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, which may be a read-only memory, a magnetic or optical disk, or the like.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (9)
1. A method of controlling a range extended engine, the method comprising:
acquiring horizontal acceleration information and vehicle body inclination angle information of the whole vehicle;
judging whether the horizontal acceleration is greater than a preset acceleration threshold value or not according to the horizontal acceleration information and the vehicle body inclination angle information, wherein the duration time is greater than a first preset time period or whether the vehicle body inclination angle is greater than a preset inclination angle or not, and the duration time is greater than a second preset time period;
if yes, controlling the engine to stop;
if not, judging whether the horizontal acceleration and the vehicle body inclination angle meet a first preset condition or not, wherein the judgment comprises the following steps: when the horizontal acceleration is not greater than a preset acceleration threshold value and the inclination angle of the vehicle body is not greater than a preset inclination angle, decomposing the gravity acceleration of the whole vehicle onto the horizontal acceleration to obtain a combined acceleration; judging whether the combined acceleration is greater than a preset acceleration threshold or not, wherein the duration time is greater than a third preset time period; if so, judging that the horizontal acceleration and the vehicle body inclination angle meet a first preset condition;
and if so, controlling the engine to stop.
2. The method for controlling the range-extended engine according to claim 1, wherein the step of determining whether the horizontal acceleration is greater than a preset acceleration threshold and the duration is greater than a first preset time period or whether the vehicle body inclination is greater than a preset inclination and the duration is greater than a second preset time period according to the horizontal acceleration information and the vehicle body inclination information further comprises the steps of:
and when the horizontal acceleration is greater than a preset acceleration threshold, the duration is less than a first preset time period, the inclination angle of the vehicle body is greater than a preset inclination angle, and the duration is less than a second preset time period, controlling the engine to normally work.
3. The method of claim 1, wherein the horizontal acceleration information is a lateral horizontal acceleration value of the entire vehicle, and the vehicle body inclination information is a left-right vehicle body inclination value.
4. The method of claim 1, wherein the first, second, and third predetermined time periods are equal.
5. A control device for a range-extended engine, characterized in that the control device is used for
A control method of configuring the range-extended engine according to any one of claims 1 to 4, the control device comprising:
the information acquisition module is used for acquiring horizontal acceleration information and vehicle body inclination angle information of the whole vehicle;
the first judgment module is used for judging whether the horizontal acceleration is greater than a preset acceleration threshold value or not;
the second judgment module is used for judging whether the inclination angle of the vehicle body is larger than a preset inclination angle or not;
the timing module is used for timing the duration;
the time judgment module is used for judging whether the duration time is greater than a first preset time period or a second preset time period;
a third judging module for judging whether the horizontal acceleration and the vehicle body inclination angle are full
A first preset condition;
and the control module is used for controlling the engine to stop when the horizontal acceleration is greater than a preset acceleration threshold value, the duration is greater than a first preset time period, or the vehicle body inclination angle is greater than a preset inclination angle, and the duration is greater than a second preset time period, or when the horizontal acceleration and the vehicle body inclination angle meet a first preset condition.
6. The control device of the range-extended engine as claimed in claim 5, wherein the control module comprises a first control unit for controlling the engine to stop when the horizontal acceleration is greater than a preset acceleration threshold and the duration is greater than a first preset time period or the inclination of the vehicle body is greater than a preset inclination and the duration is greater than a second preset time period.
7. The control device of an extended range engine according to claim 6, further comprising a second control unit for controlling the engine to stop when the horizontal acceleration and the vehicle body inclination angle satisfy a first preset condition.
8. A vehicle, characterized in that the vehicle comprises an engine, a range-extended engine controller, a vehicle control unit and a control device of the range-extended engine according to any one of claims 5 to 7, wherein the control device of the range-extended engine is arranged in the range-extended engine controller or in the vehicle control unit.
9. The vehicle according to claim 8, wherein the control device of the range-extended engine acquires horizontal acceleration information and body inclination information of the entire vehicle through the entire vehicle controller.
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| US6961654B2 (en) * | 2001-05-03 | 2005-11-01 | Ford Global Technologies, Llc | Controlled engine shutdown for a hybrid electric vehicle |
| CN102529949B (en) * | 2010-12-31 | 2015-06-17 | 上海汽车集团股份有限公司 | Process control method of hybrid system |
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