CN104494594A - Car engine BSG start and stop control method and device - Google Patents
Car engine BSG start and stop control method and device Download PDFInfo
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- CN104494594A CN104494594A CN201410788349.6A CN201410788349A CN104494594A CN 104494594 A CN104494594 A CN 104494594A CN 201410788349 A CN201410788349 A CN 201410788349A CN 104494594 A CN104494594 A CN 104494594A
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/20—Conjoint control of vehicle sub-units of different type or different function including control of steering systems
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
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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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
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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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0676—Engine temperature
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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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/28—Wheel speed
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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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
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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
- B60W2540/00—Input parameters relating to occupants
- B60W2540/12—Brake pedal position
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/081—Speed
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/20—Steering systems
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/24—Energy storage means
- B60W2710/242—Energy storage means for electrical energy
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/24—Energy storage means
- B60W2710/242—Energy storage means for electrical energy
- B60W2710/244—Charge state
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/30—Auxiliary equipments
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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
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/10—Longitudinal speed
Abstract
The invention discloses a car engine BSG start and stop control method and device and relates to the technical field of cars. According to the method, when a crankshaft is combined with a pulley system, the pulley system is driven by the crankshaft, and the BSG is in a power generator state; when the crankshaft is separated with the pulley system, the BSG is in a motor state and operates in the preset rotating speed, and the normal operation of attachments are maintained. An additional sensor is omitted, the original pulley system is free of changing, the ideal fuel saving effect is achieved, the entire car cost is low, the development period is short, and the production investment is low. The device comprises a BSG pulley, and the BSG pulley, a power assisted steering pump pulley, a water pump pulley, an air conditioning compressor pulley and a crankshaft pulley are connected through a belt; the entire original engine pulley system and transmission are maintained, the pulley system is free of changing, the development of the pulley system is omitted, and only an one-way bearing is arranged in the hub portion of the original crankshaft pulley as required.
Description
Technical field
The present invention relates to automobile technical field, especially a kind of control method and device reducing automobile fuel consumption.
Background technology
In order to reduce oil consumption, when car deceleration slides, engine idle dallies, now as flame-out in driving engine stopped oil, so can save many fuel oils.When needing to continue to travel or accelerate, driving engine is lighted a fire operation again.As 1 is the typical belt train that driving engine has, electrical generator belt wheel 11, power assistance pump for steering belt wheel 3, Water-pump belt wheel 4, air conditioner compressor belt pulley 5 are connected with crankshaft pulley 1 by a belt, by engine driven generators, power assistance pump for steering, water pump and air-conditioning compressor work.In above process, driving engine one quits work, and vehicle can not travel again.Because the annex on belt wheel system of engine no longer works.Such as, power assistance pump for steering one stall, does not have power-assisted, and rotating of steering wheel difficulty, as also travelled by force with regard to danger close.After wanting engine dies, automobile continues coasting drive, then original annex driven by the engine must change into and being driven by motor.Namely hydraulic steering pump changes electric boosted EPS into, and raw water pump changes electronic water pump into.These are changed, and huge concerning dropping into car load enterprise, the cycle is very long, and single vehicle cost rises, and is difficult to be accepted.
Summary of the invention
Under one object of the present invention is to propose a kind of prerequisite not changing original automobile belt train, the BSG on off control method that automotive safety can be made to run;
Another object of the present invention is to propose a kind of simple, reliable, economic automotive engine BSG on off control device.
For achieving the above object, following technical scheme is provided:
A kind of automotive engine BSG on off control method, described method comprises the steps:
(1), start power supply, entire car controller starts after receiving power switch signal;
(2), the wheel rotation speed signals that receives of entire car controller is zero, and entire car controller is to engine controller startup command, and engine controller controls engine starting after receiving and starting power switch signal;
(3), idling warming up, wait for driving engine oil temperature, water temperature rise to setting value;
(4), driving engine oil temperature, water temperature reach setting value, and vehicle wheel rotational speed is zero, and acceleration pedal unclamps entirely, and the rated capacity of storage battery in range of set value, and waits for three seconds, state is constant, then entire car controller sends engine off instruction; BSG is with motor mode in entire car controller instruction, and the rotating speed of electrical motor and output torque are determined according to load by BSG controller, or preset definite value;
(5), deceleration, vehicle wheel rotational speed is non-vanishing, but is less than setting value;
(6), start to walk to travel, have gear shifting signal, entire car controller sends enabled instruction; Engine controller, by process start the engine, then enters the process of giving it the gun;
(7), bend the throttle, enter the state of giving it the gun; Wheel hub combines automatically; Crank-driven train operates, and SBG is generator mode, under engine drive, charges a battery and provides power supply for car load; The normal work of engine drive power assistance pump for steering, water pump and air-conditioning compressor;
(8), release the gas pedal, step on brake pedal, the speed of a motor vehicle is non-vanishing, and when vehicle wheel rotational speed is less than setting value, entire car controller sends engine off instruction; BSG is with motor mode in entire car controller instruction, and the rotating speed of electrical motor and output torque are determined according to load by BSG controller, or preset definite value;
(9), reversing time, operate by step 6;
(10), emergency braking, operate by step 8.
Wherein, described BSG is electricity generation and electromotion all-in-one.
Further, entire car controller monitors battery condition in real time, and when engine off, accumulator electric-quantity are lower than setting value, then automatic actuation engine, under engine drive, charges a battery and provide power supply for car load.
Described BSG only takes orders from entire car controller.This BSG only needs to consider to drive hydraulic power-assisted steering pump, cooling water pump and air-conditioning compressor, and therefore power can be less than common BSG.
Preferred: the setting value in described step (5) and (8) is 30km/h.
A kind of automobile, it adopts a kind of automotive engine BSG on off control method as above.
A kind of automotive engine BSG on off control device, comprise BSG belt wheel, described BSG belt wheel is fixedly connected with BSG output shaft, power steering pump drive shaft is fixedly connected with power assistance pump for steering belt wheel, water pump drive spindle is fixedly connected with Water-pump belt wheel, air-conditioning compressor transmission shaft is fixedly connected with air conditioner compressor belt pulley, and engine crankshaft is connected with crankshaft pulley by unilateral bearing; BSG belt wheel, power assistance pump for steering belt wheel, Water-pump belt wheel air conditioner compressor belt pulley are connected with crankshaft pulley by a belt.
Further, also comprise at least one tension wheel, at least one tension wheel, BSG belt wheel, power assistance pump for steering belt wheel, Water-pump belt wheel air conditioner compressor belt pulley are connected with crankshaft pulley by a described belt.
Further, also comprise at least one idle pulley, at least one idle pulley, BSG belt wheel, power assistance pump for steering belt wheel, Water-pump belt wheel air conditioner compressor belt pulley are connected with crankshaft pulley by a described belt.
A kind of automobile, it adopts a kind of automotive engine BSG on off control device as above.
Beneficial effect of the present invention is:
(1) the present invention keeps the reservation of original attachment function and raw hide band train not to change, crank shaft pulley wheel hub is connected with bent axle by there being the unilateral bearing of radial location function, the running of train is made to combine with bent axle and to be separated, bent axle and train in conjunction with time, belt train is by crank-driven, and BSG is Generator Status; When bent axle is separated with train, BSG is electric motor state, can preset rotation speed, with the rotation speed operation preset, maintains the normal work of annex.Do not need to increase new sensor, raw hide band train is not changed, and has desirable oil-saving effect, lower integral vehicle cost, and time-to-market is short, and Productive statistics is few.
(2) the present invention retains former whole belt wheel system of engine and transmission, does not change, do not relate to the exploitation of train to belt train, and only needing increases unilateral bearing at the hub portion of former crank shaft pulley.Avoid the rising of the work capacity must developing power drive system and the cost caused.
(3) the present invention keeps former car hydraulic steering pump to drive, and after realizing BSG or hybrid power, throws away and can realize hydraulic power-assisted steering operation.Namely do not need EPS newly developed, saved development investment widely and shortened time-to-market.The idle cost of car load also declines widely.The most key, so far, the supply commercial city of EPS monopolized by foreign capital affiliate.Even so, the ability of supplier is also the requirement of the new EPS exploitation of the car load enterprise that impossible meet domestic all enterprises, even if EPS is helpful to reduction complete-vehicle oil consumption, but because time-to-market is long, can not meet the requirement of the entrucking of recent car load BSG or combination drive.
Accompanying drawing explanation
Fig. 1 is that the belt train in this background technology is arranged and transmission diagram;
Fig. 2 is that belt train of the present invention is arranged and transmission diagram;
Fig. 3 is bent axle of the present invention and crank shaft pulley connection structure schematic diagram;
Fig. 4 is full-vehicle control diagram of circuit of the present invention.
Wherein: 1, crankshaft pulley 2, BSG belt wheel, 3, power assistance pump for steering belt wheel, 4, Water-pump belt wheel, 5, air conditioner compressor belt pulley, the 6, second tension wheel, the 7, first tension wheel, 8, idle pulley, 9, bent axle, 10, unilateral bearing, 11, electrical generator belt wheel.
Detailed description of the invention
Below in conjunction with accompanying drawing, most preferred embodiment of the present invention is described further, to help understanding content of the present invention.
As shown in Figure 2 to Figure 3, a kind of automotive engine BSG on off control device, comprise BSG belt wheel 2, BSG belt wheel 2 is fixedly connected with BSG output shaft, power steering pump drive shaft is fixedly connected with power assistance pump for steering belt wheel 3, water pump drive spindle is fixedly connected with Water-pump belt wheel 4, and air-conditioning compressor transmission shaft is fixedly connected with air conditioner compressor belt pulley 5, and engine crankshaft 9 is connected with crankshaft pulley 1 by unilateral bearing 10; BSG belt wheel 2, power assistance pump for steering belt wheel 3, Water-pump belt wheel 4, air conditioner compressor belt pulley 5 are connected with 6 idle pulleys 8 with crankshaft pulley 1 and the first tension wheel 7, second tension wheel by a belt.
Keep original attachment function and retain raw hide band train not changing, crankshaft pulley 1 wheel hub is connected with bent axle 9 by there being the unilateral bearing 10 of radial location function.Do not relate to the exploitation of train, only need to increase unilateral bearing 10 at the hub portion of former crankshaft pulley 1.Avoid the rising of the work capacity must developing power drive system and the cost caused.
As described in Figure 2, a kind of automotive engine BSG on off control method, described method comprises the steps:
(1), start power supply, entire car controller starts after receiving power switch signal;
(2), the wheel rotation speed signals that receives of entire car controller is zero, and entire car controller is to engine controller startup command, and engine controller controls engine starting after receiving and starting power switch signal;
(3), idling warming up, wait for driving engine oil temperature, water temperature deduct a percentage setting value;
(4), driving engine oil temperature, water temperature reach setting value, and vehicle wheel rotational speed is zero, and acceleration pedal unclamps entirely, and the rated capacity of storage battery in range of set value, and waits for three seconds, state is constant, then entire car controller sends engine off instruction; Entire car controller instruction BSG electricity generation and electromotion all-in-one is with motor mode, and the rotating speed of electrical motor and output torque are determined according to load by BSG controller, or preset definite value;
(5), deceleration, vehicle wheel rotational speed is non-vanishing, but is less than 30km/h;
(6), start to walk to travel, have gear shifting signal, entire car controller sends enabled instruction; Engine controller, by process start the engine, then enters the process of giving it the gun;
(7), bend the throttle, enter the state of giving it the gun; Wheel hub combines automatically; Crank-driven train operates, and SBG electricity generation and electromotion all-in-one is generator mode, under engine drive, charges a battery and provides power supply for car load; The normal work of engine drive power assistance pump for steering, water pump and air-conditioning compressor;
(8), release the gas pedal, step on brake pedal, the speed of a motor vehicle is non-vanishing, and when vehicle wheel rotational speed is less than 30km/h, entire car controller sends engine off instruction; Entire car controller instruction BSG electricity generation and electromotion all-in-one is with motor mode, and the rotating speed of electrical motor and output torque are determined according to load by BSG controller, or preset definite value;
(9), reversing time, operate by step 6;
(10), emergency braking, operate by step 8.
Entire car controller monitors battery condition in real time, and when engine off, accumulator electric-quantity are lower than setting value, then automatic actuation engine, under engine drive, charges a battery and provide power supply for car load.BSG only takes orders from entire car controller.This BSG only needs to consider to drive hydraulic power-assisted steering pump, cooling water pump and air-conditioning compressor, and therefore power can be less than common BSG.
The control method of car load is simple and easy to realize, and time-to-market shortens greatly.
Bent axle and train in conjunction with time, belt train is by crank-driven, and BSG is Generator Status; When bent axle is separated with train, BSG is electric motor state, can preset rotation speed, with the rotation speed operation preset, maintains the normal work of annex.Do not need to increase new sensor, raw hide band train is not changed, and has desirable oil-saving effect, lower integral vehicle cost, and time-to-market is short, and Productive statistics is few.
Existing BSG belt wheel system of engine drives all annexes constant, and as water pump, power assistance pump for steering, air-conditioning compressor etc., realize more fuel-economizing, these annexes just must be allowed to remain in operation after engine stop, automobile can slide safely; And electric turning booster EPS, electronic water pump etc. do not have an advantage on time-to-market and Material Cost.So under BSG or combination drive, car load product is less application always.Automobile slide after also having existing BSG system not support driving engine to shut down, oil-saving effect is limited.
Claims (10)
1. an automotive engine BSG on off control method, described method comprises the steps:
(1), start power supply, entire car controller starts after receiving power switch signal;
(2), the wheel rotation speed signals that receives of entire car controller is zero, and entire car controller is to engine controller startup command, and engine controller controls engine starting after receiving and starting power switch signal;
(3), idling warming up, wait for driving engine oil temperature, water temperature rise to setting value;
(4), driving engine oil temperature, water temperature reach setting value, and vehicle wheel rotational speed is zero, and acceleration pedal unclamps entirely, and the rated capacity of storage battery in range of set value, and waits for three seconds, state is constant, then entire car controller sends engine off instruction; BSG is with motor mode in entire car controller instruction, and the rotating speed of electrical motor and output torque are determined according to load by BSG controller, or preset definite value;
(5), deceleration, vehicle wheel rotational speed is non-vanishing, but is less than setting value;
(6), start to walk to travel, have gear shifting signal, entire car controller sends enabled instruction; Engine controller, by process start the engine, then enters the process of giving it the gun;
(7), bend the throttle, enter the state of giving it the gun; Wheel hub combines automatically; Crank-driven train operates, and SBG is generator mode, under engine drive, charges a battery and provides power supply for car load; The normal work of engine drive power assistance pump for steering, water pump and air-conditioning compressor;
(8), release the gas pedal, step on brake pedal, the speed of a motor vehicle is non-vanishing, and when vehicle wheel rotational speed is less than setting value, entire car controller sends engine off instruction; BSG is with motor mode in entire car controller instruction, and the rotating speed of electrical motor and output torque are determined according to load by BSG controller, or preset definite value;
(9), reversing time, operate by step 6;
(10), emergency braking, operate by step 8.
2. a kind of automotive engine BSG on off control method as claimed in claim 1, described BSG is electricity generation and electromotion all-in-one.
3. a kind of automotive engine BSG on off control method as claimed in claim 1, entire car controller monitors battery condition in real time, when engine off, accumulator electric-quantity are lower than setting value, then and automatic actuation engine, under engine drive, charge a battery and provide power supply for car load.
4. a kind of automotive engine BSG on off control method as claimed in claim 1, is characterized in that: described BSG only takes orders from entire car controller.
5. a kind of automotive engine BSG on off control method as claimed in claim 1, is characterized in that: the setting value in described step (5) and (8) is 30km/h.
6. an automobile, its adopt as arbitrary in claim 1 to 5 as described in a kind of automotive engine BSG on off control method.
7. an automotive engine BSG on off control device, comprise BSG belt wheel (2), described BSG belt wheel (2) is fixedly connected with BSG output shaft, power steering pump drive shaft is fixedly connected with power assistance pump for steering belt wheel (3), water pump drive spindle is fixedly connected with Water-pump belt wheel (4), air-conditioning compressor transmission shaft is fixedly connected with air conditioner compressor belt pulley (5), and engine crankshaft (9) is connected with crankshaft pulley (1) by unilateral bearing (10); BSG belt wheel (2), power assistance pump for steering belt wheel (3), Water-pump belt wheel (4), air conditioner compressor belt pulley (5) are connected with crankshaft pulley (1) by a belt.
8. a kind of automotive engine BSG on off control device as claimed in claim 7, it is characterized in that: also comprise at least one tension wheel, at least one tension wheel, BSG belt wheel (2), power assistance pump for steering belt wheel (3), Water-pump belt wheel (4), air conditioner compressor belt pulley (5) are connected with crankshaft pulley (1) by a described belt.
9. a kind of automotive engine BSG on off control device as claimed in claim 7, it is characterized in that: also comprise at least one idle pulley (9), at least one idle pulley (9), BSG belt wheel (2), power assistance pump for steering belt wheel (3), Water-pump belt wheel (4), air conditioner compressor belt pulley (5) are connected with crankshaft pulley (1) by a described belt.
10. an automobile, its adopt as arbitrary in claim 7 to 9 as described in a kind of automotive engine BSG on off control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410788349.6A CN104494594A (en) | 2014-12-17 | 2014-12-17 | Car engine BSG start and stop control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410788349.6A CN104494594A (en) | 2014-12-17 | 2014-12-17 | Car engine BSG start and stop control method and device |
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Application publication date: 20150408 |