CN100383379C - Device and method for controlling power supply - Google Patents
Device and method for controlling power supply Download PDFInfo
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- CN100383379C CN100383379C CNB2004100381438A CN200410038143A CN100383379C CN 100383379 C CN100383379 C CN 100383379C CN B2004100381438 A CNB2004100381438 A CN B2004100381438A CN 200410038143 A CN200410038143 A CN 200410038143A CN 100383379 C CN100383379 C CN 100383379C
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- 238000012360 testing method Methods 0.000 claims description 9
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
Abstract
When first and second ignition switches are changed from ON to OFF (S110), a first CPU determines whether or not abnormality occurs in an electronic control brake system (S120). When the first or second CPU determines abnormality occurrence (Y in S120), the first and second CPUs immediately turn off first and second main relays, respectively (S300). When the first and second CPUs determine normal state (N in S120), and when occupant detection switch is in the OFF state (Y in S400), the ON states of the first and second main relays are continued only for a predetermined time (S500). In the normal time self-retention process, the duration of the ON states of the first and second main relays is changed in response to the voltage of a battery for the vehicle.
Description
Technical field
The present invention relates to control gear and method that a kind of control is installed in the power supply on the vehicle.The present invention be more particularly directed to switch to when disconnecting the fixedly technology of period (period) of power supply one from connection at vehicle launch.
Background technique
The steering gear, braking device and speed change gear all are the examples of the device of control vehicle operating.When these devices are electric controller by electric power control, make these electric controllers and be connected by ignition switch usually for the vehicle power supply of its power supply as vehicle launch.Therefore, when ignition switch switches to when disconnecting from connection, the power supply to these electric controllers is disconnected.For example publication number is that disclosed to relate to the technology that reaches the fixedly self-sustaining of period (controlling oneself) function to these electric controllers power supplies after cutting off ignition switch be known for the Japanese Utility Model of JP-U-532374.
Disclosed technology provides a kind of switch in the above-mentioned document, and this switch cuts off the power supply of the electronic controller (unit) of control electric controller, reduces the electric quantity of power supply that is consumed thus.
But the technology in the document only obtains the two-way control of powering or cutting off the power supply; Can not carry out precision control according to the state of vehicle.
Summary of the invention
The object of the present invention is to provide a kind of power supply control technique, this technology can switch to when disconnecting from connection at vehicle launch, powers according to vehicle-state.
First aspect present invention relates to a kind of power control, comprise to the power supply of the system of vehicle power supply and be arranged on power supply and the system of this vehicle between and in the vehicle launch process, switch to the vehicle launch of another state by a kind of state.When this vehicle launch switches to when disconnecting from connection, power control is to system's power supply of described vehicle.This power control also comprises: abnormal detecting device is used for detecting the unusual of vehicle; And control gear, according to testing result, switch to when disconnecting the electric weight that the control power supply is supplied with from connection at vehicle launch in scheduled time slot from abnormal detecting device.
Power supply can be lead storage battery, Ni-MH battery or fuel cell etc., but is not confined to wherein any especially, as long as it can be powered.For example, in using the vehicle of internal-combustion engine as actuating force source, vehicle launch can be an ignition switch.In the vehicle as fuel-cell vehicle or electric vehicle, vehicle launch can be the switch that connects for the starting vehicle.System in the vehicle can comprise individual system or a plurality of system.
The example of control electric weight comprises the change delivery and stops power supply.Scheduled time slot is not limited to scheduled time slot, and as selecting, can be up to the period that reaches predetermined state.Predetermined state can be for example to detect the occupant no longer to be in the car.
According to this structure, when generation in the vehicle is unusual, can disconnect the power supply that stops or reducing from power supply by vehicle launch is converted to from connection.Therefore, prevent to use unusual system has taken place, thereby prevent the vehicle abnormality aggravation, and prevent other related system of this anomalous effects.
When vehicle launch switches to when disconnecting from connection, control gear also can be according to the testing result from abnormal detecting device, the electric weight that the control vehicle power supply is supplied with in scheduled time slot.According to this structure,, then, therefore can prevent to use the unusual system that takes place owing to can disconnect and can stop the power supply of power supply by vehicle launch is converted to from connection if in vehicle, take place unusually.
During unusual in detecting vehicle, abnormal detecting device can be judged unusual type, and control gear converts to when disconnecting from connection at vehicle launch, can change the period of power supply power supply according to the Exception Type of judging, promptly change the period of corresponding scheduled time slot.In this case, the period of power supply power supply can be " 0 " period that correspondence is stopped power supply.Therefore, the period by the power supply power supply can become the optimum period according to unusual type change.Therefore, can prevent unusual aggravation in the unusual system.
During unusual in detecting vehicle, abnormal detecting device can change the power supply delivery according to the time corresponding to Exception Type.Control gear also can convert to from connection with vehicle launch and disconnect the proportional variation that reduces delivery of back institute's elapsed time, and when delivery reduced, control gear also can change the variance ratio of delivery according to elapsed time.For example, begin the starting reduce delivery after, control gear can at first make delivery reduce to reach scheduled time slot gradually, then makes its rapid one-tenth reach scheduled time slot for a short time.When delivery reaches will be near the predetermined value before 0 time, control gear can make it reduce gradually once more.According to this structure, the electric weight that power supply is supplied with can reach optimum amount according to the change of Exception Type through a period of time.Therefore, can prevent to make the unusual aggravation that takes place in the unusual system.
Vehicle can have a plurality of systems, and whether arbitrary system that abnormal detecting device can detect in a plurality of systems occurs unusually.In addition, when vehicle launch converts to when disconnecting from connection, control gear can stop to detecting unusual system's power supply.
According to this structure, can provide suitable electric weight to the system of needs power supplies, because convert to when disconnecting from connection when vehicle launch, can suitably set and stop the system of powering by power supply.That is, can guarantee the operation of MIN system, thereby reduce the inconvenience that brings the user.
This system also can be made of a plurality of parts.Abnormal detecting device can detect the unusual of arbitrary parts in a plurality of parts, converts to when disconnecting from connection at vehicle launch, and control gear can be controlled the power supply that unusual parts are arranged to detection.
Abnormal detecting device also can detect the power supply capacity of power supply, and control gear can convert to when disconnecting from connection at vehicle launch and supply with the power supply power supply capacity that electric weight reflects this detection with power supply.In this case, if vehicle power supply is the rechargeable type battery, then the power supply power supply capacity of Jian Ceing can be a battery charging state, or the magnitude of voltage of battery more specifically.Perhaps, if vehicle power supply is a fuel cell, the power supply power supply capacity can be the residual fuel amount.
Second aspect present invention relates to a kind of power control, comprise to the vehicle power supply of the system of vehicle power supply and place power supply and the system of vehicle between and switch to the vehicle launch of another state by a kind of state in the vehicle launch process.This power control switches to when disconnecting from connection at vehicle launch, to system's power supply of vehicle.This power control also comprises detection device and control gear, detection device detects the power supply capacity of power supply, and control gear is according to the power supply power supply capacity that detects, and switches to when disconnecting the electric weight of control power supply continuous-flow system from connection at vehicle launch.
Third aspect present invention relates to a kind of power control method, and the vehicle launch that is used for being switched to another kind of state by a kind of state when starting vehicle process switches to when disconnecting from connection, reaches scheduled time slot to system's power supply of vehicle.The method comprising the steps of: detect unusual in the vehicle; Unusual according to whether detecting, switch to when disconnecting the electric weight that the control power supply is supplied with in scheduled time slot from connection at vehicle launch.
Fourth aspect present invention relates to a kind of power control method, and the vehicle launch that is used for being switched to another kind of state by a kind of state when the vehicle launch process switches to when disconnecting from connection, reaches scheduled time slot to system's power supply of vehicle.The method comprising the steps of: the power supply capacity that detects power supply; According to the power supply power supply capacity that detects, switch to when disconnecting from connection at vehicle launch, the control power supply is supplied with the electric weight of car amount system continuously.
Brief Description Of Drawings
From description of preferred embodiments with reference to the accompanying drawings, can know and understand above-mentioned and other purpose of the present invention, feature and advantage, the same numeral in the accompanying drawing is represented same parts, wherein:
Fig. 1 is the skeleton diagram of control gear, main relay, automobile-used (holding) battery and actuator, and they are used as the power control of one embodiment of the invention jointly;
Fig. 2 is the skeleton diagram that can use the electric controlled brake system of this embodiment's power control;
Fig. 3 is the circuit diagram that can use the electric controlled brake system of this embodiment's power control;
Fig. 4 is according to switching to the first and second main relay control program flow charts when disconnecting from connection when first and second ignition switches in this embodiment of the invention power control;
Fig. 5 is the flow chart according to the modified example of the control program shown in Figure 4 in this embodiment of the invention power control (modification);
Fig. 6 is the flow chart according to the modified example of the control program shown in Figure 5 in this embodiment of the invention power control;
Fig. 7 is exception level/location tables, shows the exception level of corresponding out-of-the way position; With
Fig. 8 is exception level/location tables, shows the corresponding exception level that unusual system is arranged.
Embodiment
According to one embodiment of the invention, whether the self-retaining function that power supply reaches fixing period when cutting off vehicle ignition switch takes place perhaps according to the voltage of Vehicular battery, to control the period of power supply unusually in according to vehicle.In this manual, " in the vehicle unusual " refers to, convert to when disconnecting from connection in ignition switch, with according to self-retaining function by battery be the actuator of its power supply relevant unusually.Actuator can be for example electric controlled brake system, electric power steering system or automatically controlled parking (Parking) braking system, or similar system.The self-retaining function of pointing out in the present embodiment can be applied to unusual as the general electrical system of needs unusual in vehicle power supply, and it is unusual to be not limited to actuator.
Fig. 1 shows the configuration of control gear 350, main relay 340, Vehicular battery 330, actuator 310 and ignition switch 320, and they play power control jointly according to present embodiment.
The lead of being drawn by Vehicular battery 330 connects control gear 350 after the first point of branching N1 is divided into two systems, a system is first power line 372 that wherein is provided with ignition switch 320, and another system is the second source line 374 that wherein is provided with main relay 340.First power line 372 and the second source line 374 that all connect control gear 350 pass through first and second diodes 362 and 364 respectively, then link together again at the 3rd point of branching N3.First and second diodes 362 and 364 only flow electric current along from top to bottom direction among the figure.The electric power of apparatus for controlling of supply 350 is adjusted to by the power supply line 352 in the control gear 350 and requires voltage, supplies with computing device (hereinafter referred is " CPU ") 354 then.
On the second source line 374 between the main relay 340 and second diode 364 the second point of branching N2 is arranged, a lead is from this second point of branching N2 branch and connect actuator 310.That is, vehicle power supply 330 is powered to actuator 310 by main relay 340.Actuator 310 in the present embodiment is electric controlled brake system, electric power steering system or automatically controlled parking brake system, or similar system.Actuator 310 is provided with actuator sensor 366, and this actuator sensor 366 detects the state of actuator 310 and testing result is exported to CPU 354.CPU 354 is then according to the electric power of supplying with actuator 310 from the testing result control of actuator sensor 366.Vehicular battery 330 has voltage transducer 368, and this voltage transducer 368 detects the voltage of Vehicular battery 330, and testing result is exported to CPU 354.These results then are reflected in the delivery.
When disconnecting ignition switch 320, control gear 350 is realized self-retaining function by main relay 340, makes to the fixedly actuating of period of actuator 310.When self-retaining function works, the time that control gear 350 also works according to the testing result control self-retaining function from voltage transducer 368.In addition, when generation was unusual in actuator 310, control gear 350 stopped self-retaining function and stops immediately when disconnecting ignition switch 320 to actuator 310 power supplies.When actuator 310 comprises a plurality of element, control gear 350 judges whether each element has unusually, according to unusual type, promptly unusual according to taking place in which element, the onset time of control self-retaining function, and stop to actuator 310 power supplies immediately or judge whether to continue as each element powering.
Describing actuator 310 in detail below is examples of electric controlled brake system.Fig. 2 shows the configuration of electric controlled brake system, can be applied to this electric controlled brake system according to the power supply control system of present embodiment.This electric controlled brake system comprises the right side of respectively corresponding right and the near front wheel 20 and 22 and the near front wheel brake wheel cylinder (master cylinder) 30 and 32 and the right side and left back brake wheel cylinder 34 and 36 of the corresponding respectively right side and left rear wheel 24 and 26.
The master cylinder 72 of equipment hydraulic booster comprises hydraulic booster 70 and master cylinder 60.Hydraulic booster 70 provides the high pressure brake fluid by high pressure liquid potential source 74 described below to the pressure chamber of master cylinder 60, and as the hydraulic pressure that helps on brake petal 110, to apply downforce.Master cylinder 60 is to the first and second liquid flow tube roads 66 and 68 hydraulic pressure that transmit corresponding to the following press operation of brake petal 110.In this case, hydraulic booster 70 plays the hydraulic booster device.Master cylinder 60 has two pressure chambers, and the hydraulic pressure in the hydraulic chamber is to produce according to the operation of brake petal 110.One of hydraulic chamber connects right and the near front wheel brake wheel cylinder 30 and 32 by the first liquid flow tube road 66.Another hydraulic chamber connects right and left rear wheel brake wheel cylinder 34 and 36 by the second liquid flow tube road 68.
The first liquid flow tube road 66 is divided into two-way halfway, and a branch road connects off-front wheel brake wheel cylinder 30, and another branch road connects the near front wheel brake wheel cylinder 32 by first connecting pipeline 100 that is provided with first connecting valve 104.Similarly, the second liquid flow tube road 68 also is divided into two-way halfway, and a branch road connects off hind wheel brake wheel cylinder 34, and another branch road connects left rear wheel brake wheel cylinder 36 by second connecting pipeline 102 that is provided with second connecting valve 106.
The first liquid flow tube road 66 has first main stop valve 90.The opening and closing of this first main stop valve 90 make brake wheel cylinder 30 be connected with master cylinder 60 with 32 and disconnect.First main stop valve 90 is electromagnetism one-way valves, and this electromagnetism one-way valve is opened when proper functioning.This first main stop valve 90 will be by controlling at following control gear 296 to its explanation, so that block passage when receiving drive signal.The mode that the second liquid flow tube road 68 is provided with 94 work of second main stop valve, 94, the second main stop valves equally is identical with first main stop valve 90.
The fuel tank 76 that stores brake fluid is arranged on master cylinder 60 tops.When release was applied to pressure on the brake petal 110, brake fluid can flow between two pressure chambers of fuel tank 76 and master cylinder 60.
High pressure liquid potential source 74 comprises pump 80, accumulator 82, pump motor 78.Make brake fluid supercharging in the fuel tank 76 by pump 80, and it is stored in the accumulator 82.Pump 80 is driven by pump motor 78, and pump motor 78 will be described it below by control gear 296 controls.High pressure liquid potential source 74 connects brake wheel cylinder 30,32,34 and 36 by the 3rd liquid flow tube road 96.Similarly, brake wheel cylinder 30,32,34 is connected fuel tank 76 with 36 by the 4th liquid flow tube road 98.
Off-front wheel pressure charging valve 150, the near front wheel pressure charging valve 152, off hind wheel pressure charging valve 154 and left rear wheel pressure charging valve 156 are arranged in the 3rd liquid flow tube road 96, and off-front wheel reduction valve 160, the near front wheel reduction valve 162, off hind wheel reduction valve 164 and left rear wheel reduction valve 166 are arranged in the 4th liquid flow tube road 98.
Off-front wheel pressure charging valve 150 and off-front wheel reduction valve 160 corresponding off-front wheel brake wheel cylinders 30, and be called off-front wheel linear valve group 50 jointly.Similarly, the near front wheel pressure charging valve 152 and the near front wheel reduction valve 162 corresponding the near front wheel brake wheel cylinders 32, and be called the near front wheel linear valve group 52 jointly, off hind wheel pressure charging valve 154 and off hind wheel reduction valve 164 corresponding off hind wheel brake wheel cylinders 34, and be called off hind wheel linear valve group 54 jointly; Left rear wheel pressure charging valve 156 and left rear wheel reduction valve 166 corresponding left rear wheel brake wheel cylinders 36, and be called left rear wheel linear valve group 56 jointly.
All linear valve groups 50,52,54 and 56 are the electromagnetism one-way valves of closing when proper functioning.When by the following control gear that will describe 296 output drive signals, valve is proportional according to amount and electric current that drive signal opens or closes.Therefore can distinguish the hydraulic pressure of each brake wheel cylinder 30,32,34 of linearity control and 36 by control corresponding linear valve group 50,52,54 and 56.
Each pressure charging valve 150,152,154,156, reduction valve 160,162,164,166, main stop valve 90 and 94 and connecting valve 104 and 106 play hydraulic control valve.By the power supply of control gear 296 controls to each hydraulic control valve.
The first and second energy storage pressure sensors 84 and 86 are arranged on the pressure charging valve 150,152,154 on the 3rd liquid flow tube road 96 and 156 upstream.This first and second energy storage pressures sensor 84 and 86 detects the hydraulic pressure that stores in the accumulator 82.The first energy storage pressure sensor 84 is positioned near the accumulator 82, and the second energy storage pressure sensor 86 be positioned at pressure charging valve 150,152,154 and 156 near.Pressure-relief valve 88 is arranged near the outlet of accumulator 82, if make the hydraulic pressure in the accumulator 82 be higher than the preset upper limit value, then pressure-relief valve 88 is opened and is made brake fluid flow back to fuel tank 76, thereby always stores the brake fluid that is equal to or less than predetermined upper limit value in accumulator 82.
Stroke simulator device 130 is arranged to from the first liquid flow tube road, 66 branches (separating), and the first liquid flow tube road 66 makes master cylinder 60 be connected with first main stop valve 90.The trip simulator apparatus 130 comprises stroke simulator 132 and stroke simulator one-way valve 134.Encourage (energising) or de-excitation (outage) to open or close passage between stroke simulator 132 and the master cylinder 60 by coil 136 to stroke simulator one-way valve 134.
Although not shown, stroke simulator 132 has the piston that is arranged in the cylinder.Along this piston of predetermined direction resiliency urged.
First and second stroke sensors 112 and 114 and brake switch 108 are set near brake petal 110, and stroke sensor detects the stroke of brake petal 110, and brake switch 108 detects brake petals 110 and when is in depressed state.
In addition, first master cylinder pressure sensor 62 that detects master cylinder 60 hydraulic pressure is arranged between the master cylinder 60 and first main stop valve 90 in the first liquid flow tube road 66.Similarly, second master cylinder pressure sensor 64 that detects master cylinder 60 hydraulic pressure is arranged between the master cylinder 60 and first main stop valve 94 in the second liquid flow tube road 68.
At pressure charging valve 150,152,154 and 156 downstream, or in the downstream of first and second main stop valves 90 and 94, at brake wheel cylinder 30,32, in near 34 and 36 the liquid flow tube road, be provided with the off-front wheel brake wheel cylinder pressure transducer 40 that detects off-front wheel brake wheel cylinder 30 hydraulic pressure, detect the near front wheel brake wheel cylinder pressure transducer 42 of the near front wheel brake wheel cylinder 32 hydraulic pressure, detect the off hind wheel brake wheel cylinder pressure transducer 44 of off hind wheel brake wheel cylinder 34 hydraulic pressure and the left rear wheel brake wheel cylinder pressure transducer 46 of detection left rear wheel brake wheel cylinder 36 hydraulic pressure.
Off-front wheel velocity transducer 120 is arranged in the off-front wheel 20, and the near front wheel velocity transducer 122 is arranged in the near front wheel 22, and off hind wheel velocity transducer 124 is arranged in the off hind wheel 24, and left rear wheel velocity transducer 126 is arranged in the left rear wheel 26.These are taken turns velocity transducer 120,122,124 and 126 and detect the wheel 20,22,24 of its correspondence and 26 rotational speed separately.According to wheel velocity transducer 120,122,124 and 126 rotational speeies that detect, calculate the wheel speed of each sliding mode of taking turns and estimation etc., and use it for anti-lock control and traction control.
Three kinds of modes of braking in the electric controlled brake system are described below.
In first mode of braking, brake wheel cylinder 30,32,34 and 36 is by the brake fluid operation from high pressure liquid potential source 74.In this first mode of braking, first and second main stop valves 90 and 94 are closed, thereby close the first and second liquid flow tube roads 66 and 68.Therefore interrupt the hydraulic pressure that the master cylinder 72 by the equipment hydraulic booster provides.And, close first and second connecting valves 104 and 106, thereby also closed first and second connecting pipelines 100 and 102.In the case, depress when brake petal 110, in control gear 296, calculate target braking force according to checkout value from first and second stroke sensors 112 and 114 and first and second master cylinder pressure sensors 62 and 64.Then according to the target braking force control high pressure liquid potential source 74 and the pressure charging valve 150,152,154 and 156 that calculate, making provides the hydraulic coupling that is produced by pump 80 by the 3rd liquid flow tube road 96 to brake wheel cylinder 30,32,34 and 36.Then, when actual braking force reached target braking force, the brake fluid of supplying with brake wheel cylinder 30,32,34 and 36 turned back to fuel tank 76 by reduction valve 160,162,164 and the 166 and the 4th liquid flow tube road 98.
In first mode of braking, stroke simulator one-way valve 134 switches to be opened, and makes brake fluid overcome elastomeric elastic force effect and flows into the hydraulic chamber of stroke simulator 132.Elastomeric reaction force produces false braking maneuver sense, makes the driver not have unhappy sensation thus.Encourage or stroke simulator one-way valve 134 is controlled in de-excitation (energising control) by 296 pairs of coils 136 of control gear.
When because high pressure liquid potential source 74, first or second main stop valve 90 or 94, linear valve group 50,52,54 or the 56, first or the 2nd CPU 290 292 or any sensor etc. in take place unusual and can not use first mode of braking time, select second mode of braking.The master cylinder 60 that is connected with the brake petal mechanical type provides hydraulic pressure by the first and second liquid flow tube roads 66 and 68 to brake wheel cylinder 30,32,34 and 36.At this moment, the high hydraulic pressure that is stored in the accumulator 82 is offered hydraulic booster 70, the feasible pressure chamber that is added to master cylinder 60 corresponding to the brake pedal depression power-assisted of depressing brake petal 110.
Because first and second main stop valves 90 and 94 are opened, therefore (being in opening state) opened on the first and second liquid flow tube roads 66 and 68.And because first and second connecting valves 104 and 106 are opened, therefore first and second connecting pipelines 100 and 102 are opened.
When hydraulic booster 70 and high pressure liquid potential source 74 can not be worked again, select the 3rd mode of braking owing to the unusual as signal conductor disconnection in the unusual or electrical system in the Vehicular battery 230.By the first and second liquid flow tube roads 66 and 68, provide the hydraulic pressure of depressing (degree) to brake wheel cylinder 30,32,34 and 36 according to brake petal 110 by master cylinder 60.Erect image is equally controlled the electromagnetism one-way valve in second mode of braking.
Fig. 3 is the circuit diagram of electric controlled brake system.Control gear 296 has first and second CPU 290 and 292 as its chief component, and comprises ROM, RAM and I/O part.The one CPU 290 connects first and second stroke sensors 112 and 114, first and second master cylinder pressure sensors 62 and 64, brake wheel cylinder pressure transducer 40,42,44 and 46, the first energy storage pressure sensor 84, brake switch 108 and vehicle-wheel speed sensor 120,122,124 and 126 (this not shown brake switch 108 and vehicle-wheel speed sensor 120,122,124 and 126).In addition, various sensor (not shown)s such as acceleration transducer also are connected control gear 296 with the various detectors (also not shown among the figure) of yaw rate sensor and use in various types of controls such as common braking control, anti-lock control, traction control, vehicle operation control and accumulator control.Checkout value from various sensors and detector is input among the CPU 290.Output from occupant's detecting switch 298 also inputs to a CPU 290.Occupant's detecting switch 298 be for example with the switch that is fastenedly connected (interlock) of Seat Belt, or be connected the switch of (interlock) with the door handle on pilot set next door.The second energy storage pressure sensor 86 connects the 2nd CPU 292.
More specifically, the driving of a CPU 290 control pumps 80 is so that accumulator 82 remains in the predetermined pressure range.The one CPU 290 also controls the opening of the electromagnetism one-way valve that opens and closes liquid flow tube road 66,68,96 and 98.Input to CPU 290 from the pedal travel index signal of first and second stroke sensors 112 and 114 and from the master cylinder pressure index signal of first and second master cylinder pressure sensors 62 and 64.Control gear 296 detects the brake operating amount according to the checkout value from these four sensors.In common braking, control gear 296 calculates target braking force according to by first and second stroke sensors 112 and 114 and first and second master cylinder pressure sensors 62 and the 64 required braking force of driver that detect.In this case, every kind of sensor is provided with two, makes one can compensate another, and promptly purpose is to improve the failure safe degree of protection.Therefore, even taken place in one of first and second stroke sensors 112 and 114 or one of first and second master cylinder pressure sensors 62 and 64 unusually, control gear 296 also can detect the brake operating amount.
First and second ignition switches 270 and 272 disconnect when the driver does not handle, handle by the driver these ignition switches are connected, thus starting Vehicular system such as motor.When not being operated, first and second ignition switches 270 and 272 disconnect first and second main relays 240 and 242 that make current switching.When first and second ignition switches 270 and 272 were connected, first and second main relays 240 and 242 were connected by its corresponding C PU.
Totally four power lines 210,212,220 and 222 are arranged to by first and second ignition switches 270 and 272 and first and second main relays 240 and 242.These four power lines 210,212,220 and 222 are distributed between two systems, and these two systems are by first system 200 of first and second power lines 210 and 212 power supplies with by third and fourth power line 220 and 222 second systems 202 of powering.First system 200 is to the power supply of first constituent element 180, and first constituent element 180 comprises the first energy storage pressure sensor 84, first and second master cylinder pressure sensors 62 and 64, first and second stroke sensors 112 and 114 and brake wheel cylinder pressure transducer 40,42,44 and 46.Second system is to 190 power supplies of second constituent element, and second constituent element 190 comprises the second energy storage pressure sensor 86.
The one CPU 290, off-front wheel and left rear wheel linear valve group 50 are connected first system 200 with 56, first main stop valve 90 with first connecting valve 104.The 2nd CPU 292, the near front wheel and off hind wheel linear valve group 52 are connected second system 202 with 54, second main stop valve 94 with second connecting valve 106.First main stop valve 90, off-front wheel and left rear wheel linear valve group 50 and 56 and first connecting valve 104 also can be generically and collectively referred to as the first hydraulic control valve group 182.Similarly, second main stop valve 94, the near front wheel and off hind wheel linear valve group 52 and 54 and second connecting valve 106 also can be generically and collectively referred to as the second hydraulic control valve group 184.
Describe the wiring (wiring) of electric controlled brake system below in detail.As mentioned above, first system 200 connects control gear 296 through first ignition switch 270 and by second source line 212 through first main relay 240 by first power line 210.First power line 210 connects the first point of branching A, and connects the second point of branching B through first diode 250.By the second point of branching B branch so as the power supply lead connect first voltage step-down circuit 280, by the second point of branching B branch so as the power supply another lead connect second voltage step-down circuit 284.Although not shown in the figures, by the lead connection motor relay of the first point of branching A branch.This motor relay connects the pump motor 78 of high pressure liquid potential source 74 so that power.Power to first constituent element 180 by first voltage step-down circuit 280.First diode 250 only allows electric current to flow to the right by the left side among the figure, prevents that simultaneously it from flowing to the left side by the right.Similarly, second diode 252, the 3rd diode 260 and the 4th diode 262 to be illustrated below also only allow electric current to flow to the right by the left side among the figure.
Voltage step-down circuit 280,282,284 becomes the coupled required voltage of each constituent element with 286 voltage transitions with Vehicular battery 230.
Describe below the mode of braking used when unusual has taken place in one of the second source line 212 of first system 200 or the 4th power line 222 of second system 202.For example, if taken place in the second source line 212 unusually, just then can not operate by first main stop valve 90, off-front wheel and left rear wheel linear valve group 50 and 56 and first connecting valve 104 of 212 power supplies of second source line.
When referring again to Fig. 2 and describe this situation, supply with the near front wheel and off hind wheel brake wheel cylinder 32 and 34 by the hydraulic pressure that high pressure liquid potential source 74 is supplied with by the 3rd liquid flow tube road 96 and through the near front wheel and off hind wheel pressure charging valve 152 and 154, pressure charging valve 152 and 154 all can be operated.Because second connecting valve 106 stays open, and also can provide hydraulic pressure to left rear wheel brake wheel cylinder 36 by second connecting pipeline 102.Therebetween, because first main stop valve 90 as the electromagnetism one-way valve of opening when normal running is opened, therefore the hydraulic pressure that is produced by the master cylinder 72 of equipping hydraulic booster is supplied with off-front wheel brake wheel cylinder 30 by the first liquid flow tube road 66 and through first main stop valve 90.Cut off the hydraulic pressure of circulation first connecting pipeline 100 by first connecting valve 104.
According to the structure of the foregoing description, also can provide hydraulic pressure unusually to three wheels even in one of second source line 212 or the 4th power line 222, taken place.In addition, also can obtain to supply with the high pressure of high hydraulic pressure, adopt this high pressure to brake remaining the 4th wheel by the brake pedal depression power-assisted that hydraulic booster 70 produces.
Refer again to Fig. 3 below and describe first constituent element 180 and second constituent element 190.First constituent element 180 is constituent elements of carrying out first mode of braking.The second energy storage pressure sensor 86 is the constituent elements that are used for the failure safe protection as second constituent element 190, and its function class is similar to the first energy storage pressure sensor 84.As long as one of these constituent elements can carry out work, just can detect the hydraulic pressure of accumulator 82.
If depress brake petal 110, then after ignition switch is disconnected, reach scheduled time slot through first main relay 240 to 180 power supplies of first constituent element by second source line 212.Similarly, after first and second ignition switches 270 and 272 have been disconnected, reach scheduled time slot to electromagnetism one-way valve and first, second CPU 290,292 power supplies through first and second main relays 240 and 242.Because first constituent element 180 has and carries out controlling necessary sensor as the hydraulic braking of first mode of braking, therefore, when first ignition switch 270 disconnects, can provide hydraulic pressure to brake wheel cylinder 30,32,34,36 according to first mode of braking, when connecting just as first ignition switch 270.Therefore, the volume under pressure of brake petal 110 and the relation between the braking force are significantly different when no longer connecting with ignition switch, therefore avoid making the driver to feel under the weather.
In the present embodiment, select one second energy storage pressure sensor 86 as second constituent element 190.But the invention is not restricted to this.For example, consider power consumption, function and brake request, master cylinder pressure sensor, brake wheel cylinder pressure transducer, electromagnetism one-way valve, CPU or pump etc. also can be used as second constituent element 190.
Fig. 4 converts the control program flow chart of first and second main relays 240 when disconnecting and 242 when first and second ignition switches 270 and 272 to from connection.In this program, when generation in the electric controlled brake system was unusual, first and second main relays 240 and 242 disconnected immediately.When not having when unusual, reach scheduled time slot by self-retaining function by Vehicular battery 230 power supplies, therefore make electric controlled brake system can carry out work.Convert the voltage of Vehicular battery 230 when disconnecting according to first and second ignition switches 270 and 272 to from connection, scheduled time slot is selected from three types.When converting disconnection to, connection make first and second main relays 240 and 242 periods of connecting also be called " self-sustaining period Ts " hereinafter in first and second ignition switches 270 and 272.
When first and second ignition switches 270 and 272 convert (step S110) when disconnecting to from connection, first and second CPU 290 and 292 determine whether to occur in the electric controlled brake system unusual (step 120).Particularly, a CPU 290 judges whether first constituent element 180, the first hydraulic control valve group 182, Vehicular battery 230 and pump motor 78 in first system 200 have unusually.The 2nd CPU 292 judges whether second constituent element 190, the second hydraulic control valve group 184 in second system 202 has unusually.First and second CPU 290 and 292 then transmit testing result each other, and arbitrary CPU judges among by first and second CPU 290 and 292 (be judged as and be) when unusual in step S120, first and second CPU 290 and 292 disconnect first and second main relays 240 and 242 (step S300) immediately respectively.
If first and second CPU 290 and 292 judge not unusual (promptly being judged as not) in step S120, then a CPU 290 judges whether that then occupant's detecting switch 298 disconnects (step S400).If occupant's detecting switch 298 is connected (promptly being judged as not) in step S400, then owing to may depress brake petal 110 for abrupt deceleration vehicle, therefore first and second CPU 290 and 292 keep first and second main relays 240 and 242 to connect respectively, continue the process (processing) of repeating step S400, disconnect so that judge whether occupant's detecting switch 298.
Disconnect (promptly in step S400, be judged as and be) if judge occupant's detecting switch 298, then in the self-sustaining process when proper functioning, make first and second main relays 240 and 242 connect a scheduled time slot (step S500) continuously.In the self-sustaining process of this proper functioning, first and second main relays 240 and 242 keep the voltage Vb change of the period of connection according to Vehicular battery 230.
In the process of step S500, a CPU 290 judges whether that at first Vb is greater than 12V (step S510).If voltage Vb is greater than 12V (promptly be judged as in step S510 and be), then CPU290 setting self-hold-time Ts is 300 seconds, starts the timer among the CPU 290, judges that then whether self-hold-time Ts is than 300 seconds long (step S512).If self-hold-time Ts is no more than 300 seconds (promptly being judged as in step S512 not), then a CPU 290 makes timer increase progressively (countup) (step S514), and the process among continuation repeating step S512 and the S514, till self-hold-time Ts surpasses 300 seconds.If self-hold-time Ts longer than 300 seconds (promptly be judged as in step S512 and be), then a CPU 290 sends it to the 2nd CPU 292, and first and second CPU 290 and 292 disconnect first and second main relays 240 and 242 (step S300) respectively then.
If in step S510, voltage Vb is equal to or less than 12V (being to be judged as among the step S510 not), and then a CPU 290 judges that then whether Vb is greater than 11V (step S520).If Vb is greater than 11V (promptly be judged as in step S520 and be), then a CPU 290 setting self-hold-time Ts are 120 seconds, start the timer that is arranged among the CPU 290, judge that then whether self-hold-time Ts is than 120 seconds long (step S522).If self-hold-time Ts does not surpass 120 seconds (promptly being judged as in step S522 not), then a CPU 290 makes timer increase progressively (step S524), and continues the process among repeating step S522 and the S524, till self-hold-time Ts surpasses 120 seconds.If self-hold-time Ts longer than 120 seconds (promptly be judged as in step S522 and be), then a CPU 290 sends to the 2nd CPU 292 with this, and first and second CPU 290 and 292 disconnect first and second main relays 240 and 242 (step S300) respectively then.
If in step S520, voltage Vb is equal to or less than 11V (promptly being judged as not) in step S520, and then a CPU 290 judges that then whether Vb is greater than 10V (step S530).If Vb is greater than 10V (promptly be judged as in step S530 and be), then a CPU 290 setting self-hold-time Ts are 60 seconds, start the timer that is arranged among the CPU 290, judge that then whether self-hold-time Ts is than 60 seconds long (step S532).If self-hold-time Ts does not surpass 60 seconds (promptly being judged as in step S532 not), then a CPU 290 makes timer increase progressively (step S534), and continues the process among repeating step S532 and the S534, till self-hold-time Ts surpasses 60 seconds.If self-hold-time Ts longer than 60 seconds (promptly in step S532, be judged as and be) if or in the process of step S530 voltage Vb be equal to or less than 10V (promptly in step S530, be judged as not), then a CPU 290 sends to the 2nd CPU 292 with this, and first and second CPU 290 and 292 disconnect first and second main relays 240 and 242 (step S 300) respectively then.
After setting self-hold-time Ts, a CPU 290 also can change delivery according to elapsed time.For example, a CPU 290 can carry out a process, so that the voltage that first reduction voltage circuit 280 provides reduced 0.2V in per 10 seconds.First and second CPU 290 and 292 also can reduce and will reduce power consumption thus to the quantity of the constituent elements of its power supply according to elapsed time.
According to said procedure, when generation in the electric controlled brake system is unusual, can stop the power supply of Vehicular battery 230 or the electric weight that minimizing is supplied with by first and second ignition switches 270 and 272 are disconnected.Therefore, can prevent to continue to use unusual electric controlled brake system has taken place.In addition, to taking place, unusual system's power supply can suppress unusual aggravation by reducing or stopping, and parts and other related system of suppressing other proper functioning of anomalous effects.In addition, because the period that self-retaining function works can be set according to the voltage Vb of Vehicular battery 230, the voltage that therefore can suppress Vehicular battery 230 is reduced to the voltage Vb that may interfere vehicle to start subsequently.
Fig. 5 is the flow chart of the modified example of control program shown in Figure 4.Control program among Fig. 5 and the difference between the control program among Fig. 4 are, (be judged as in step S120 and be) when unusual taken place when judging in step S120, then first and second ignition switches 270 and 272 disconnect immediately in the control program of Fig. 4, and in the control program of Fig. 5, judge whether to set the process of self-hold-time Ts according to the voltage Vb of Vehicular battery 230, as the self-sustaining process that takes place when unusual, or disconnect first and second ignition switches 270 and 272 immediately.Self-sustaining process when generation is unusual will mainly be described below.Because the self-sustaining process in the proper functioning of step S500 is identical with the self-sustaining process in the program shown in Figure 4, therefore omitted its detailed description.
If judge in the process of step S120 unusual (promptly be judged as in step 120 and be) taken place, then first and second main relays 240 and 242 continue to connect and reach scheduled time slot, and as the self-sustaining process (step S200) that takes place when unusual.In the self-sustaining process when generation is unusual, change the period of first and second main relays 240 and 242 maintenance connections according to the voltage Vb of Vehicular battery 230.Difference in this process and the proper functioning between the self-sustaining process is, in this process, self-hold-time Ts is set at more short-and-medium than its self-sustaining process when the proper functioning.Half of time when more specifically, being set in the self-sustaining process to proper functioning.
If in the process of step S200, a CPU 290 judges that at first whether voltage Vb is greater than 12V (step S210).If voltage Vb is greater than 12V (promptly be judged as in step S210 and be), then a CPU 290 setting self-hold-time Ts are 150 seconds, start the timer that is arranged among the CPU 290, judge that then whether self-hold-time Ts is than 150 seconds long (step S212).If self-hold-time Ts is no more than 150 seconds (promptly being judged as in step S212 not), then a CPU290 makes timer increase progressively (step S214), and continues the process among repeating step S212 and the S214, till self-hold-time Ts surpasses 150 seconds.If self-hold-time Ts longer than 150 seconds (promptly be judged as in step S212 and be), then a CPU 290 sends it to the 2nd CPU 292, and first and second CPU 290 and 292 disconnect first and second main relays 240 and 242 (step S300) respectively then.
If in step S210, voltage Vb is equal to or less than 12V (being to be judged as among the step S210 not), and then a CPU 290 judges that then whether Vb is greater than 11V (step S220).If voltage Vb is greater than 11V (promptly be judged as in step S220 and be), then a CPU 290 setting self-hold-time Ts are 60 seconds, start the timer that is arranged among the CPU 290, judge that then whether self-hold-time Ts is than 60 seconds long (step S222).If self-hold-time Ts does not surpass 60 seconds (promptly being judged as in step S222 not), then a CPU 290 makes timer increase progressively (step S224), and continues the process among repeating step S222 and the S224, till self-hold-time Ts surpasses 60 seconds.If self-hold-time Ts longer than 60 seconds (promptly be judged as in step S222 and be), then a CPU 290 sends to the 2nd CPU 292 with this, and first and second CPU 290 and 292 disconnect first and second main relays 240 and 242 (step S300) respectively then.
If voltage Vb is equal to or less than 11V (promptly being judged as not) in step S220 in step S220, then a CPU 290 judges that then whether Vb is greater than 10V (step S230).If Vb is greater than 10V (promptly be judged as in step S230 and be), then a CPU 290 setting self-hold-time Ts are 30 seconds, start the timer that is arranged among the CPU 290, judge that then whether self-hold-time Ts is than 30 seconds long (step S232).If self-hold-time Ts does not surpass 30 seconds (promptly being judged as in step S232 not), then a CPU 290 makes timer increase progressively (step S234), and continues the process among repeating step S232 and the S234, till self-hold-time Ts surpasses 30 seconds.If self-hold-time Ts longer than 30 seconds (promptly in step S232, be judged as and be) if or in the process of step S230 voltage Vb be equal to or less than 10V (promptly in step S230, be judged as not), then a CPU 290 sends to the 2nd CPU 292 with this, and first and second CPU 290 and 292 disconnect first and second main relays 240 and 242 (step S 300) respectively then.
In this self-sustaining process when generation is unusual, also can change delivery according to institute's elapsed time after setting self-hold-time Ts.The process that changes delivery according to elapsed time also can only be applied to the unusual constituent element of those generations.
According to said procedure, if take place in the electric controlled brake system unusually, then can set self-hold-time Ts between optimal period according to the voltage of Vehicular battery 230, the power supply that unusual system takes place is reduced, keep the vehicle braked performance simultaneously.
Fig. 6 is the flow chart of the modified example of control program shown in Figure 5.Control program among Fig. 6 and the difference between the control program among Fig. 5 are, in the control program of Fig. 6, (be judged as in step S120 and be) when unusual taken place when judging in step S120, then as the processing of step S150, the one CPU 290 judges unusual type, and finishes other process according to the Exception Type of judging.Particularly, a CPU 290 estimates exception level, and is divided into Three Estate (being grade 1,2 or 3) according to unusual position takes place.
Fig. 7 is exception level/location tables, represents the exception level of corresponding out-of-the way position, i.e. Exception Type.Should be noted that shown out-of-the way position only is an example; Also can be other unusual set positions exception level may take place.Should also be noted that the exception level of setting is not to be used for it is so limited here.
It is that serious (severe) is unusual that 1 grade of unusual expression is compared unusually with other.The unusual position of corresponding this grade is pump motor 78, four 150,152,154 and 156 and four reduction valve 160,162,164 and 166 of pressure charging valve.When 1 grade of unusual generation, first and second ignition switches 270 and 272 disconnect, and just after this, first and second CPU 290 and 292 disconnect first and second main relays 240 and 242 respectively immediately.
2 grades of unusual expressions are medium unusual.When take place exception level to be set at 2 when unusual at one of constituent element of control gear 296.If the arbitrary parts in first system 200 or second system 202 take place when unusual, then first and second CPU 290 and 292 main relays that disconnect immediately corresponding to the unusual system of this generation stop thus to this system's power supply.In addition, when generation was unusual, by the self-sustaining process control also was the power supply of the system of its power supply.If take place unusually in a plurality of positions and all take place in two systems unusually, then exception level is set at 1, and first and second main relays 240 and 242 are all disconnected, and stops thus to two systems' power supplies.Can be by control gear 296 self or by for example monitoring the independent control gear (not shown) of whole vehicle, unusual in the detection control apparatus 296.
3 grades of unusual expression mile abnormalities.In this case, anomalistic period the chien shih self-retaining function work.When generation in the arbitrary pressure transducer at each pressure transducer is unusual, exception level is set at 3, these pressure transducers for example are the first and second energy storage pressure sensors 84 and 86, first and second master cylinder pressure sensors 62 and 64 and brake wheel cylinder pressure transducer 40,42,44,46, perhaps first and second stroke sensors 112 and 114.When 3 grades of unusual generations,, can not stop power supply unusually owing to not taking place according to the self-sustaining process control power supply that takes place when unusual.This exception level/location tables is stored in the predetermined storage area among the CPU 290.
With reference to Fig. 6, below main explanation this process different with process shown in Figure 5, the process among step S150 when unusual promptly takes place.When in step S120, having determined not take place (in step S120, being judged as not) when unusual, identical with shown in the Figure 4 and 5 of process subsequently then, thereby omitted the explanation that it is done.On the other hand, when determine to have taken place (be judged as and be) when unusual in step S120, a CPU 290 determines Exception Types (step S152).In other words, a CPU 290 detects unusual position takes place.The one CPU 290 determines exception level (step S154) then based on the unusual occurrence positions of exception level/location tables shown in Figure 7 according to detection.
If exception level is defined as 1 grade (that is, being judged as 1 in step S154), then look this unusually for serious, thereby a CPU 290 determines to stop simultaneously to first and second systems 200 and 202 power supplies.First and second CPU 290 and 292 then disconnect two systems' (step 300) of first and second main relays 240 and 242 immediately respectively.
If be defined as 2 grades (promptly in step S154, being judged as 2) unusually, then look this unusually for medium, thereby a CPU 290 stops the power supply of the unusual system of in first and second systems 200 and 202 arbitrary generation.Therefore, disconnect in first main relay 240 or second main relay 242 corresponding to arbitrary main relay (step S156) that unusual system takes place.For also in the system to its power supply self-sustaining process (step 200) when unusual takes place.
If determine to be 3 grades (that is, in step S154, being judged as 3) unusually, then look this unusually for slight, thereby a CPU 290 is according to the self-sustaining process control power supply that takes place when unusual, and do not stop power supply (step S200).Remaining program is identical with program shown in Figure 5.
According to the above program, when generation is unusual in electric controlled brake system, disconnect by making first and second ignition switches 270 and 272, by according to unusual position taking place, can control power supply promptly according to the self-sustaining process of exception level.
In the present embodiment, electric controlled brake system provides as the example of actuator, but the invention is not restricted to this.The present invention also can be widely used in controlling the various devices of travel condition of vehicle, drives power steering gear or hydraulic driving power steering gear (also being generically and collectively referred to as the electric power steering system) as electricity.And, in the present embodiment, set Exception Type according to the constituent element of electric controlled brake system, and according to the delivery that unusual positioning control Vehicular battery 230 takes place, but the invention is not restricted to this.For example, can set exception level, can come the control ignition switch to convert the electric weight of supplying with when disconnecting to according to unusual system takes place from connection for each system is each actuator.
Fig. 8 has provided exception level and corresponding relation between the unusual system has taken place.When taking place in the electric controlled brake system when unusual, exception level is 1, and when ignition switch when connection converts disconnection to, stop power supply immediately to whole vehicle.When taking place in the electric power steering system when unusual, exception level is 2, when ignition switch converts to when disconnecting from connection, stops the power supply to the electric power steering system, and self-sustaining process when unusual takes place for other system.When taking place in automatically controlled parking brake system when unusual, exception level is 3, convert to when disconnecting from connection in ignition switch, and the self-sustaining process when taking place unusually, and continue power supply and reach scheduled time slot.
Therefore, when ignition switch converts to when disconnecting from connection, can suitably set to stop therefore can providing suitable electric weight to the system that needs electric power by the system of power supply for its power supply.Promptly can guarantee the work of MIN necessary system, so that reduce the inconvenience that brings to the user.
Although described the present invention, should be understood that to the invention is not restricted to these exemplary embodiments or structure with regard to exemplary embodiment.On the contrary, the present invention is intended to comprise various modifications and the configuration that is equal to.In addition, although provided the various parts and the process of exemplary embodiment with various combinations and modification, comprise more, still less or in other combination of only single parts or process and the modification also drop in the spirit and scope of the present invention.
For example, lead storage battery or nickel-hydrogen accumulator can be used as Vehicular battery 230 uses of the foregoing description.Fuel cell can be used as vehicle power supply in addition.But power supply is not limited to any in these batteries especially, as long as it can be powered.In the vehicle as fuel-cell vehicle or electric vehicle, vehicle launch can be to be the starting switch that vehicle connected.
Can be system's power supply by power supply, till realizing predetermined state, rather than through till the scheduled time slot.Predetermined state can be to detect the occupant no longer in car.
During unusual in detecting vehicle, abnormal detecting device can also change the power supply delivery according to the time corresponding to the definite Exception Type of institute.Control gear also can switch to from connection with vehicle launch and disconnect the back proportional variation that reduces the power supply delivery of institute's transit time, and when delivery reduced, control gear also can change the variance ratio of delivery according to elapsed time.For example, after beginning to reduce delivery, the electric weight that control gear can reduce to supply with at first gradually reaches scheduled time slot, and then the electric weight that reduces rapidly to supply with reaches scheduled time slot.Then, during predetermined value before the electric weight of supplying with reaches soon near 0, control gear can make it reduce gradually once more.According to this structure, the electric weight that power supply is supplied with can change to optimum amount in time according to Exception Type.Therefore, can suppress to have unusual aggravation in the system of unusual generation.
In the above-described embodiments, the voltage Vb according to Vehicular battery 230 is the electric weight that battery charging state changes the system that offers.But,, then can change the electric weight of supply system according to the residual fuel amount if vehicle power supply is a fuel cell.
As mentioned above, above exemplary embodiment and energy of deformation thereof convert to when disconnecting from connection at vehicle launch, realize the power supply power supply control of carrying out according to vehicle-state.
Claims (17)
1. power control, comprise vehicle power supply (230) to system's power supply of vehicle, and be arranged between the system of this vehicle power supply and this vehicle and in this vehicle launch process, switch to the vehicle launch (270,272) of another kind of state from a kind of state, when this vehicle launch switches to when disconnecting from connection, described power control is characterized in that comprising to the system of the described vehicle scheduled time slot of powering:
Be used for detecting the unusual abnormal detecting device (290,292) of described vehicle; And
Control gear (296), this control gear are used for according to from the testing result of described abnormal detecting device, switch to when disconnecting the electric weight that control is supplied with in described scheduled time slot by described power supply from connection at described vehicle launch.
2. power control as claimed in claim 1, it is characterized in that, when described vehicle launch (270,272) switches to when disconnecting from connection, described control gear (296) stops the power supply of described power supply (230) in described scheduled time slot according to the testing result of described abnormal detecting device (290,292).
3. power control as claimed in claim 2 is characterized in that, when described abnormal detecting device (290,292) detected unusual in the vehicle, described control gear (296) stopped the power supply of described power supply (230) in described scheduled time slot.
4. power control as claimed in claim 1 is characterized in that, during unusual in detecting vehicle, described abnormal detecting device (290,292) is determined Exception Type; When described vehicle launch (270,272) switches to when disconnecting from connection, described control gear (296) changes described scheduled time slot according to the Exception Type of determining.
5. power control as claimed in claim 1 is characterized in that, during unusual in detecting vehicle, described abnormal detecting device (290,292) is determined Exception Type; Switch to when disconnecting from connection at described vehicle launch (270,272), described control gear (296) changes the electric weight that power supply (230) is supplied with according to the time.
6. power control as claimed in claim 1 is characterized in that described vehicle has a plurality of systems; Arbitrary system that described abnormal detecting device (290,292) detects in described a plurality of system whether has taken place unusually; During unusual in detecting one of described a plurality of systems, described control gear (296) converts to when disconnecting from connection at described vehicle launch, stops to detecting unusual system's power supply.
7. power control as claimed in claim 1 is characterized in that, when the system of described vehicle comprised a plurality of parts, whether arbitrary parts that described abnormal detecting device (290,292) detects in described a plurality of parts took place unusually; During unusual in detecting one of described a plurality of parts, described control gear (296) converts to when disconnecting from connection at described vehicle launch, and control is to the delivery that detects unusual parts.
8. power control as claimed in claim 7, it is characterized in that, during unusual in detecting vehicle, described control gear (296) reduces to supply with the detected electric weight that unusual described parts are arranged, and makes the electric weight supplied with less than not detecting the electric weight of supplying with when unusual.
9. power control as claimed in claim 1, it is characterized in that, during unusual in detecting vehicle, described control gear (296) reduces to supply with the detected electric weight that unusual described system is arranged, and makes the electric weight supplied with less than not detecting the electric weight of supplying with when unusual.
10. as each described power control in the claim 1 to 9, it is characterized in that described abnormal detecting device (290,292) also detects the power supply capacity of described power supply; Described control gear (296) is transformed into the electric weight of supplying with power supply when disconnecting at described vehicle launch from connection and reflects described power supply power supply capacity.
11. power control as claimed in claim 10 is characterized in that, described power supply power supply capacity is low more, and described control gear (296) will be supplied with the electric weight of described system and reduce to low more.
12. power control, it comprises to the vehicle power supply (230) of the system of vehicle power supply and is arranged between the system of this vehicle power supply and this vehicle and switches to the vehicle launch (270,272) of another kind of state from a kind of state in the vehicle launch process, when vehicle launch switches to when disconnecting from connection, described power control is characterized in that comprising to system's power supply of described vehicle:
Control gear (296), this control gear is used to detect the power supply capacity of described power supply, and according to the power supply power supply capacity that detects, and switches to when disconnecting from connection at vehicle launch, and the electric weight of the system of described vehicle is supplied with in control continuously by described power supply.
13. power control as claimed in claim 12 is characterized in that, the power supply power supply capacity of described detection is low more, and described control gear (296) will be supplied with the electric weight of the system of described vehicle and reduce to low more.
14. a power control method, the vehicle launch that it is used for switching to another kind of state from a kind of state in the vehicle launch process switches to when disconnecting from connection, to the system of the described vehicle scheduled time slot of powering, it is characterized in that may further comprise the steps:
Detect unusual in the described vehicle; And
Unusual according to whether detecting, when described vehicle launch switches to when disconnecting from connection, control the electric weight that described power supply is supplied with in described scheduled time slot.
15. power control method as claimed in claim 14 is characterized in that, when detecting when unusual, making to supply with to detect has the electric weight of unusual described system to reduce, and makes the electricity ratio of being supplied with not detect little when unusual.
16. a power control method, the vehicle launch that it is used for switching to another kind of state from a kind of state in the vehicle launch process switches to when disconnecting from connection, to the system of the described vehicle scheduled time slot of powering, it is characterized in that may further comprise the steps:
Detect the power supply capacity of described power supply; And
According to the power supply power supply capacity that detects, switch to when disconnecting from connection at vehicle launch, control the electric weight that described power supply is supplied with the system of described vehicle continuously.
17. power control method as claimed in claim 16 is characterized in that, the power supply power supply capacity of described detection is low more, and the electric weight of supplying with the system of described vehicle is reduced to low more.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP133493/2003 | 2003-05-12 | ||
| JP2003133493A JP4155094B2 (en) | 2003-05-12 | 2003-05-12 | Power control device |
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| Publication Number | Publication Date |
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| CN1550664A CN1550664A (en) | 2004-12-01 |
| CN100383379C true CN100383379C (en) | 2008-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100381438A Active CN100383379C (en) | 2003-05-12 | 2004-05-08 | Device and method for controlling power supply |
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|---|---|
| JP (1) | JP4155094B2 (en) |
| KR (1) | KR100525651B1 (en) |
| CN (1) | CN100383379C (en) |
| DE (1) | DE102004021842B4 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007112364A (en) * | 2005-10-21 | 2007-05-10 | Toyota Motor Corp | Car-mounted power supply system |
| CN101109349B (en) * | 2007-08-07 | 2010-05-26 | 力帆实业(集团)股份有限公司 | ECU delayed processing circuit of motorcycle |
| JP4983487B2 (en) * | 2007-09-04 | 2012-07-25 | トヨタ自動車株式会社 | Vehicle control device |
| TWI353513B (en) | 2007-11-02 | 2011-12-01 | Htc Corp | Main computer for vehicle and power management met |
| JP2010052630A (en) * | 2008-08-29 | 2010-03-11 | Koito Mfg Co Ltd | Dimming control system for vehicular lighting fixture |
| JP5404117B2 (en) * | 2009-03-23 | 2014-01-29 | 三菱農機株式会社 | Work vehicle |
| US9071083B2 (en) * | 2010-06-08 | 2015-06-30 | Microsoft Technology Licensing, Llc | Super capacitor supplemented server power |
| JP6133090B2 (en) * | 2013-03-21 | 2017-05-24 | 株式会社ケーヒン | Engine control device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11230868A (en) * | 1998-02-18 | 1999-08-27 | Denso Corp | Diagnosing apparatus for vehicle |
| JP2001025165A (en) * | 1999-07-06 | 2001-01-26 | Hitachi Ltd | Power supply unit for vehicle and intensively wired apparatus |
| JP2001328518A (en) * | 2000-05-23 | 2001-11-27 | Toyota Motor Corp | Power supply control device for vehicle |
| US20020084786A1 (en) * | 2000-12-28 | 2002-07-04 | Denso Corporation | Power distribution apparatus for a motor vehicle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0532374U (en) * | 1991-10-03 | 1993-04-27 | 株式会社東芝 | Elevator sill |
| DE19710363A1 (en) * | 1997-03-13 | 1998-09-24 | Bosch Gmbh Robert | Circuit arrangement for supplying a consumer with electrical energy |
| DE19828057A1 (en) * | 1998-06-24 | 1999-12-30 | Bosch Gmbh Robert | Unit monitoring continuous voltage supply to SRAM in vehicle controller |
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2003
- 2003-05-12 JP JP2003133493A patent/JP4155094B2/en not_active Expired - Lifetime
-
2004
- 2004-05-04 DE DE102004021842A patent/DE102004021842B4/en not_active Expired - Lifetime
- 2004-05-08 CN CNB2004100381438A patent/CN100383379C/en active Active
- 2004-05-11 KR KR10-2004-0032957A patent/KR100525651B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11230868A (en) * | 1998-02-18 | 1999-08-27 | Denso Corp | Diagnosing apparatus for vehicle |
| JP2001025165A (en) * | 1999-07-06 | 2001-01-26 | Hitachi Ltd | Power supply unit for vehicle and intensively wired apparatus |
| JP2001328518A (en) * | 2000-05-23 | 2001-11-27 | Toyota Motor Corp | Power supply control device for vehicle |
| US20020084786A1 (en) * | 2000-12-28 | 2002-07-04 | Denso Corporation | Power distribution apparatus for a motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040097915A (en) | 2004-11-18 |
| DE102004021842A1 (en) | 2004-12-09 |
| DE102004021842B4 (en) | 2007-08-16 |
| CN1550664A (en) | 2004-12-01 |
| JP4155094B2 (en) | 2008-09-24 |
| JP2004331010A (en) | 2004-11-25 |
| KR100525651B1 (en) | 2005-11-02 |
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