CN103532724B - A kind of MOST network interface circuit and MOST network state control method - Google Patents
A kind of MOST network interface circuit and MOST network state control method Download PDFInfo
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Abstract
The invention discloses a kind of MOST network interface circuit and corresponding MOST network wake-up method, it is sent to external host controller by independent LIN transceivers one pulse signal, external host controller judges whether this pulse signal is ECL wake-up signal, if it is an enable signal is generated, power for MOST controller enabling the first power transfer module, it is achieved thereby that the ECL arousal function of MOST network;Namely MOST network is from no longer Tong Bu with the MOST controller power-off of the external host controller that node is corresponding, and it is held in normal power mode, when other networks need to transmit data, also can realize this node is waken up up.Relative to prior art, the present invention not only ensure that under MOST net dormancy state, remains to receive other network datas by this interface circuit, it is thus also avoided that power detecting and the problem of management functional redundancy, reduces the cost of ECU.
Description
Technical field
The present invention relates to MOST(Media Oriented System Transport, towards the system of media
Transmission) network interface circuit technical field, particularly relate to a kind of MOST network interface circuit and MOST
Network state control method.
Background technology
MOST network interface circuit, i.e. realizes the ECU(Electronic Control with MOST node
Unit, electronic control unit) in the interface circuit of MOST network service.As it is shown in figure 1, it is existing
MOST network interface circuit specifically include that power transfer module 101, MOST controller (INIC,
Integrated network interface controller, integrated network interface controller) 102, power management
Chip (PMIC, power management unit) 103 and external host controller (EHC, External
Host Controller) 104;Wherein, MOST controller 102 is by physical layer interface 105 and MOST
Network is connected.Heavy line in Fig. 1 is for electric connection line, and fine line connects for controlling enable or state-detection
Wiring, dotted line is data communication connecting line.
General, under MOST net dormancy state, the power supply in above-mentioned MOST network interface circuit turns
Die change block 101 stops output electric energy, EHC104 and INIC102 is in off-position, it is impossible to receives and appoints
What network data;Meanwhile, PMIC103 passes through its LIN transceivers electric controling line being internally integrated
(ECL) wake-up signal, and when receiving this ECL wake-up signal, by enabling power transfer module
101, to power for EHC104 and INIC102, i.e. network is converted to wake-up states by resting state,
Network data transmission can be normally carried out;When MOST network no data, PMIC103 stops enabling power supply
Modular converter 101, EHC104 and INIC102 power-off.And in reality application, above-mentioned network interface electricity
Road is likely to be simultaneously used for the data transmission of other automotive communication network (such as LIN, CAN etc.), once
MOST network enters resting state, and the data of other networks also cannot normal transmission;The most above-mentioned network connects
Mouth circuit cannot realize the data transmission of multiple network.
In prior art, for needing the data being realized multiple network by above-mentioned network interface circuit to transmit
Network node, power transfer module 101 can only be kept to be constantly in enabled state, i.e. keep EHC104
Often electricity, in order to receiving network data at any time.Under this control mode, not only increase the consumption of network interface
Electricity, and occur in that following technical problem: EHC104 self also has power detecting function, also simultaneously
Can realize the ECL of MOST network is waken up up, power detecting and management etc., there is merit with PMIC103
Energy redundancy, adds the cost of ECU.
Summary of the invention
In view of this, the invention provides a kind of MOST network interface circuit and MOST network state control
Method processed, to ensure while being able to receive that other network datas, eliminates power detecting and management function
Redundancy phenomena, reduction ECU cost.
To achieve these goals, it is proposed that scheme as follows:
A kind of MOST network interface circuit, is arranged at the host node at MOST networking and from node, including:
MOST controller, LIN transceiver, the external host controller being connected with described LIN transceiver, with
And the first power transfer module being connected with described external host controller and MOST controller respectively;
Described MOST controller is for controlling the difference internodal data transmission at MOST networking;
Described first power transfer module is used for receiving enable signal and/or cut-off signals, and receiving
Start to power for described MOST controller when stating enable signal, stop when receiving described cut-off signals
Power to described MOST controller;
Described external host controller is maintained at normal power mode;
When described MOST network interface circuit is arranged at described host node, described external host controller
Being specially host node external host controller, described LIN transceiver is specially host node LIN transceiver;
Described host node external host controller is used for: detection MOST networking is the need of by resting state
Transfer wake-up states to, if it is, generate ECL wake-up signal;
Described host node LIN transceiver is used for: the ECL generated by described host node external host controller
Wake-up signal sends to described from node;
When described in described MOST network interface circuit is arranged at from node, described external host controller
Being specially from node external host controller, described LIN transceiver is specially from node LIN transceiver;
Described it is used for from node LIN transceiver: detect whether to believe from described from the pulse outside node
Number time, if it is, trigger described from node external host controller, and described pulse signal is sent
To described from node external host controller;
Described it is used for from node external host controller: judge whether described pulse signal is that ECL wakes up letter up
Number, if it is, generate described enable signal;And detect in MOST network whether have communication data,
If it is not, then generate described cut-off signals.
Preferably, described MOST network interface circuit also includes:
The second source modular converter being connected with described external host controller and the first power transfer module,
Battery feed voltage signal for being sent by battery feed is respectively converted into described external host and controls
Device and the power supply signal of the first power transfer module.
A kind of MOST network state control method, based on a kind of host node being arranged at MOST networking and
MOST network interface circuit at node;
Described MOST network interface circuit includes: MOST controller, LIN transceiver, external host
Controller and the first power transfer module;Described external host controller is maintained at normal power mode;Wherein,
When described MOST network interface circuit is arranged at described host node, described external host controller is concrete
For host node external host controller, described LIN transceiver is specially host node LIN transceiver;Work as institute
State MOST network interface circuit and be arranged at described when node, described external host controller be specially from
Node external host controller, described LIN transceiver is specially from node LIN transceiver;
Described MOST network state control method includes:
Described host node external host controller detection MOST networking is called out the need of being transferred to by resting state
The state of waking up, if it is, generate ECL wake-up signal, and by described host node LIN transceiver by institute
The ECL wake-up signal stating the generation of host node external host controller sends to the most described from node;
It is described when whether node LIN transceiver detection has from the described pulse signal from outside node,
If it is, trigger described from node external host controller, and described pulse signal is sent to described
From node external host controller;
Described from node external host controller in a triggered, it is judged that whether described pulse signal is ECL
Wake-up signal;
When described pulse signal is described ECL wake-up signal, described make from node external host controller
Can corresponding first power transfer module, make corresponding MOST controller power on, MOST network enter
Wake-up states;
When MOST network is without communication data, described external host controller turns off described first power supply and turns
Die change block, makes corresponding MOST controller power-off, MOST network enter resting state.
Preferably, after described external host controller turns off described first power transfer module, described side
Method also includes:
Described external host controller controls described LIN transceiver and enters park mode, described external host
Controller enters often electricity low-power consumption mode.
Preferably, described MOST network state control method also includes: when described pulse signal is not for institute
When stating ECL wake-up signal, described described from node LIN transceiver from the control of node external host controller
Enter park mode, described from node external host controller entrance often electricity low-power consumption mode.
From above-mentioned technical scheme it can be seen that MOST network interface circuit disclosed by the invention, pass through
Independent LIN transceivers one pulse signal sends to external host controller, external host controller
Judge whether this pulse signal is ECL wake-up signal, if it is generate an enable signal, to enable the
One power transfer module is that described MOST controller is powered, it is achieved thereby that the ECL of MOST network
Arousal function;Namely the external host that MOST network is from the MOST network interface circuit that node is corresponding
No longer Tong Bu with the MOST controller power-off of controller, and it is held in normal power mode, when other networks need
During data to be transmitted, also can realize this node is waken up up.Accordingly, with respect to prior art uses PMIC
Realizing the ECL arousal function of MOST network, the MOST network interface circuit of the present invention is not only protected
Demonstrate,prove under MOST net dormancy state, remained to receive other network datas by this interface circuit, also
Avoid power detecting and the problem of management functional redundancy, reduce the cost of ECU.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the MOST network interface circuit figure of prior art;
Fig. 2 is MOST network interface circuit figure disclosed in the embodiment of the present invention;
Fig. 3 is the operation principle schematic diagram of MOST network interface circuit disclosed in the embodiment of the present invention;
Fig. 4 is MOST network interface circuit figure disclosed in another embodiment of the present invention;
Fig. 5 is MOST network wake-up method flow chart disclosed in another embodiment of the present invention;
Fig. 6 is MOST network wake-up method flow chart disclosed in another embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Concrete, as in figure 2 it is shown, the MOST network interface circuit that the embodiment of the present invention provides includes:
MOST controller (INIC) 201, LIN transceiver 202, the outside that is connected with LIN transceiver 202
Console controller (EHC) 203 and respectively with external host controller 203 and MOST controller
201 the first power transfer module 204 being connected;Described external host controller is maintained at normal power mode.Its
Middle heavy line represents for electrical connection, and fine line represents that control enables or state connects, and dotted line represents data stream
Connect.
Fig. 3 shows the operation principle of above-mentioned interface circuit, and wherein, 200a is MOST network host node
Interface circuit, 200b is the MOST network interface circuit from node;Certainly, in actual application, from
Node may have multiple, and owing to its operation principle is identical, thus Fig. 3 only by 1 as a example by node.
With reference to Fig. 3, above-mentioned MOST network interface circuit realizes work process that ECL wakes up up and principle such as
Under:
In the MOST network interface circuit 200a of MOST network host node: host node external host controls
Device 203a detection MOST networking transfers wake-up states to the need of by resting state, if it is, generate
ECL wake-up signal;And then this ECL wake-up signal is sent extremely by the LIN transceiver 202a of this host node
The MOST network interface circuit 200b from node of MOST network.
From the MOST network interface circuit 200b of node: when LIN transceiver 202b has detected whether
From described from the pulse signal outside node, if it is, trigger from node external host controller
203b, and described pulse signal is sent to from node external host controller 203b;Outside main from node
Machine controller 203b judges whether described pulse signal is ECL wake-up signal, makes if it is, generate one
Energy signal, controls the first power transfer module 204b and starts to power for MOST controller 201b, should
MOST network enters wake-up states from node, and external host controller 203b passes through MOST controller
201b and described MOST network carry out normal data communication;From node external host controller 203b
Whether detection MOST network there is communication data, if it is not, then generate a cut-off signals, controls first
Power transfer module 204b stops powering to MOST controller 201b.
From said structure, MOST network interface circuit disclosed in the present embodiment, MOST network master
External host controller 203a in the MOST network interface circuit that node is corresponding is in normal electricity condition,
While realizing power detecting and management function, the ECL being realized MOST network by said process is waken up up
Function;Simultaneously under resting state, MOST network is from the MOST network interface circuit that node is corresponding
External host controller 203b no longer with the MOST Tong Bu power-off of controller 201b, and be held in normal electricity
Pattern, when other networks need to transmit data, also can realize waking up this node up.Therefore, relatively
Using PMIC to realize the ECL arousal function of MOST network in prior art, the present embodiment is not only
Ensure that under MOST net dormancy state, remain to receive other network datas by this interface circuit,
Also avoid power detecting and the problem of management functional redundancy, reduce the cost of ECU.
Concrete, external host controller includes LIN controller.
For MOST network host node, this LIN controller is mainly used in sending above-mentioned pulse signal.
MOST network is being touched by LIN transceiver 202b from node, external host controller 203b
After Faing, its LIN controller is initialized, and then judge that described pulse is believed by this LIN controller
Number whether it is ECL wake-up signal;If it is, external host controller 203b is to the first Power convert mould
Block 204b output enables signal.
Preferably, when no data in network or judge when described pulse signal is not ECL wake-up signal,
Corresponding LIN transceiver can be controlled by external host controller and enter park mode, simultaneously external host
Controller self enters often electricity low-power consumption mode, to reduce the power consumption of this MOST network interface circuit.
Preferably, another embodiment of the present invention additionally provides another MOST network interface circuit, as
Shown in Fig. 4, also include:
The second source modulus of conversion being connected with external host controller 203 and the first power transfer module 204
Block 205, for receiving the battery feed voltage signal that battery feed sends, and exports after changing
To external host controller 203 and the first power transfer module 204, external host controller 203 is made to keep
Often electricity supply.
No matter network is in dormancy or wake-up states, and described MOST network interface circuit is all by second
Power transfer module 205 is powered for external host controller 203, makes external host controller 203 keep
Often electricity condition, with receiving network data at any time;And described MOST network interface circuit is by the first power supply
Modular converter 204 and second source modular converter 205 are powered for related device, in the case of same application,
Being powered by a power transfer module relative to prior art, the burden of each power transfer module is less,
Improve the reliability of power supply.
In the present embodiment, other features and connected mode are same as the previously described embodiments, and here is omitted.
Another embodiment of the present invention additionally provides a kind of MOST network wake-up method, based on a kind of MOST
Network interface circuit;
Described MOST network interface circuit includes: MOST controller, LIN transceiver, external host
Controller and the first power transfer module;Described external host controller is maintained at normal power mode;When described
When MOST network interface circuit is the host node of MOST network, described external host controller includes main
Node external host controller, described LIN transceiver includes host node LIN transceiver;As described MOST
Network interface circuit be MOST network when node, described external host controller includes from node
Portion's console controller, described LIN transceiver includes from node LIN transceiver.
As it is shown in figure 5, described MOST network wake-up method includes:
S101, described host node external host controller detect MOST networking and turn the need of by resting state
For wake-up states;
S102, when described host node external host controller detection MOST networking need transferred to by resting state
During wake-up states, then enabling corresponding first power transfer module, the described ECL generating impulse form wakes up up
Signal;
S103, described host node LIN transceiver by described ECL wake-up signal send to MOST network from
Node;
The described MOST network wake-up method that the present embodiment provides, passes when there being data to need in MOST networking
Time defeated, then MOST networking need transferred to wake-up states by resting state, now will be by described host node outside
Whether console controller detection has data to need transmission in MOST networking;When described host node external host control
Device processed detection MOST networking needs when being transferred to wake-up states by resting state, illustrates now in MOST networking
Data are had to need transmission;Described host node external host controller enables corresponding first power transfer module,
And generate the ECL wake-up signal of impulse form;Described host node LIN transceiver wakes up described ECL up letter
Number send to MOST network from node, carry out waking up up from node described.
S104, described from node LIN transceivers to pulse signal time, trigger described from node
Portion's console controller, and described pulse signal is sent to described from node external host controller;
Concrete, described from node LIN transceivers to pulse signal time, described from node LIN
Transceiver triggers described from node external host controller so that it is transfer normal operating conditions to;And it is described
From node LIN transceiver, described pulse signal is sent to described from node external host controller;
S105, described from node external host controller in a triggered, it is judged that whether described pulse signal
For ECL wake-up signal;
Concrete, after described external host controller is triggered, transfers normal operating conditions to, and judge institute
State whether pulse signal is ECL wake-up signal;
S106, when described pulse signal is described ECL wake-up signal, described from node external host control
Device processed enables corresponding first power transfer module, makes corresponding MOST controller power on, MOST net
Network enters wake-up states;
Concrete, when external host controller judges that described pulse signal is described ECL wake-up signal,
The output of described external host controller enables signal, and described first power transfer module receives described enable
After signal, powering for described MOST controller, this MOST network enters wake-up states from node, and
By I2C(Inter-Integrated Circuit, twin wire universal serial bus) or MLB bus protocol carry out
MOST controller initializes;After the initialization of described MOST controller is completed, MOST network
Carried out with described MOST network by described MOST controller from the described external host controller of node
Normal data communication.
S107, when MOST network is without communication data, described external host controller turn off described first
Power transfer module, makes corresponding MOST controller power-off, MOST network enter resting state.
Concrete, when MOST network is without communication data, described external host controller generates and sends
Cut-off signals, after described first power transfer module receives described cut-off signals, stops as described MOST
Controller is powered;MOST network enters resting state.
MOST network wake-up method disclosed in the present embodiment, achieves MOST network by said process
ECL arousal function;Namely MOST network passes through from the MOST network interface circuit that node is corresponding
Described LIN transceiver and external host controller control described first power transfer module so that described
MOST controller described need to carry out data communication from node time just power on and transfer normal operating conditions to.
Accordingly, with respect to prior art using PMIC realize the ECL arousal function of MOST network, this
Embodiment carries out MOST WOL control under the normal power mode of external host controller, not only ensure that
Under MOST net dormancy state, remain to receive other network datas by this interface circuit, also avoid
Power detecting and the problem of management functional redundancy, reduce the cost of ECU.
Preferably, in the MOST network wake-up method that other embodiments of the invention provide, in described outside
After console controller turns off described first power transfer module, also include:
Described external host controller controls described LIN transceiver and enters park mode, described external host
Controller enters low-power consumption mode.
Concrete, when MOST network is without communication data, described external host controller generates a shutoff letter
Number, while turning off the power supply that described first power transfer module is MOST controller, control described LIN
Transceiver enters park mode, and described external host controller enters low-power consumption mode, thus reduces
The power consumption of MOST network interface circuit.
Another embodiment of the present invention also provides for another MOST network wake-up method, is equally based on real above
Executing the MOST network interface described in example, as shown in Figure 6, the method includes:
S201, described host node external host controller detect MOST networking and turn the need of by resting state
For wake-up states;
S202, when described host node external host controller detection MOST networking need transferred to by resting state
During wake-up states, then enabling corresponding first power transfer module, the described ECL generating impulse form wakes up up
Signal;
Described ECL wake-up signal is sent to MOST network by S203, described host node LIN transceiver
From node;
S204, described from node LIN transceivers to pulse signal time, trigger described from node
Portion's console controller, and described pulse signal is sent to described from node external host controller;
S205, described from node external host controller in a triggered, it is judged that whether described pulse signal
For ECL wake-up signal, if it is, perform step S206, otherwise perform step S208;
S206, when described pulse signal is described ECL wake-up signal, described from node external host control
Device processed enables corresponding first power transfer module, makes corresponding MOST controller power on, MOST net
Network enters wake-up states;
S207, when MOST network is without communication data, described external host controller turn off described first
Power transfer module, makes corresponding MOST controller power-off, MOST network enter resting state;
S208, described external host controller control described LIN transceiver and enter park mode, described outside
Console controller enters low-power consumption mode.
Concrete, when described LIN controller judges described pulse signal not as described ECL wake-up signal,
Illustrate that described pulse signal is for interference signal or other signals, it is not necessary to make described first power transfer module
Power for described MOST controller, without carrying out internetwork data communication;Described external host control
Device processed enables described LIN transceiver and enters park mode, and described external host controller enters low-power consumption mould
Formula.When MOST network in a dormant state time, its external host controller be in often electricity low power consumpting state,
MOST controller is in off-position, to reduce power consumption.
MOST network wake-up method disclosed in the present embodiment, realizes MOST network by said process
ECL arousal function, i.e. MOST network passes through described LIN from the MOST network interface circuit that node is corresponding
Transceiver and external host controller control described first power transfer module so that described MOST controller
Described need to carry out data communication from node time just power on and transfer normal operating conditions to.Accordingly, with respect to
Using PMIC to realize the ECL arousal function of MOST network in prior art, the present embodiment not only ensures
Under MOST net dormancy state, remain to receive other network datas by this interface circuit, also avoid
Power detecting and the problem of management functional redundancy, reduce the cost of ECU.Meanwhile, by outside described
The judgement to described pulse signal of portion's console controller, and if only if, and this pulse signal is ECL wake-up signal
Time, just enabling described first power transfer module is that described MOST controller is powered, and otherwise controls LIN and receives
Send out device and recover park mode, external host controller recovery low-power consumption mode, thus avoid other signals
Interference, it is achieved that more sophisticated MOST network wake-up method.
In the present embodiment, other concrete steps are same as the previously described embodiments, and here is omitted.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (5)
1. a MOST network interface circuit, is arranged at the host node of MOST network and from node,
It is characterized in that, including: MOST controller, LIN transceiver, be connected with described LIN transceiver
External host controller and be connected with described external host controller and MOST controller respectively
One power transfer module;
Described MOST controller is for controlling the difference internodal data transmission of MOST network;
Described first power transfer module is used for receiving enable signal and/or cut-off signals, and receiving
Start to power for described MOST controller when stating enable signal, stop when receiving described cut-off signals
Power to described MOST controller;
Described external host controller is maintained at normal power mode;
When described MOST network interface circuit is arranged at described host node, described external host controller
Being specially host node external host controller, described LIN transceiver is specially host node LIN transceiver;
Described host node external host controller is used for: detection MOST network is the need of by resting state
Transfer wake-up states to, if it is, generate ECL wake-up signal;
Described host node LIN transceiver is used for: the ECL generated by described host node external host controller
Wake-up signal sends to the described MOST network interface circuit from node;
When described in described MOST network interface circuit is arranged at from node, described external host controller
Being specially from node external host controller, described LIN transceiver is specially from node LIN transceiver;
Described it is used for from node LIN transceiver: detect whether to believe from described from the pulse outside node
Number time, if it is, trigger described from node external host controller, and described pulse signal is sent
To described from node external host controller;
Described it is used for from node external host controller: judge whether described pulse signal is that ECL wakes up letter up
Number, if it is, generate described enable signal;
Whether detection MOST network there is communication data, if it is not, then generate described cut-off signals.
MOST network interface circuit the most according to claim 1, it is characterised in that also include:
The second source modular converter being connected with described external host controller and the first power transfer module,
Battery feed voltage signal for being sent by battery feed is respectively converted into described external host and controls
Device and the power supply signal of the first power transfer module.
3. a MOST network state control method, it is characterised in that be arranged at MOST based on one
The host node of network and the MOST network interface circuit at node;
Described MOST network interface circuit includes: MOST controller, LIN transceiver, external host
Controller and the first power transfer module;Described external host controller is maintained at normal power mode;Wherein,
When described MOST network interface circuit is arranged at described host node, described external host controller is concrete
For host node external host controller, described LIN transceiver is specially host node LIN transceiver;Work as institute
State MOST network interface circuit and be arranged at described when node, described external host controller be specially from
Node external host controller, described LIN transceiver is specially from node LIN transceiver;
Described MOST network state control method includes:
Described host node external host controller detection MOST network is called out the need of being transferred to by resting state
The state of waking up, if it is, generate ECL wake-up signal, and by described host node LIN transceiver by institute
State the ECL wake-up signal transmission extremely described MOST net from node that host node external host controller generates
Network interface circuit;
It is described when whether node LIN transceiver detection has from the described pulse signal from outside node,
If it is, trigger described from node external host controller, and described pulse signal is sent to described
From node external host controller;
Described from node external host controller in a triggered, it is judged that whether described pulse signal is ECL
Wake-up signal;
When described pulse signal is described ECL wake-up signal, described make from node external host controller
Can corresponding first power transfer module, make corresponding MOST controller power on, MOST network enter
Wake-up states;
When MOST network is without communication data, described from node external host controller shutoff described first
Power transfer module, makes corresponding MOST controller power-off, MOST network enter resting state.
MOST network state control method the most according to claim 3, it is characterised in that in institute
Stating after node external host controller turns off described first power transfer module, described method also includes:
It is described described from node LIN transceiver entrance park mode from the control of node external host controller,
Described from node external host controller entrance often electricity low-power consumption mode.
5. according to the MOST network state control method described in claim 3 or 4, it is characterised in that
Also include: when described pulse signal is not for described ECL wake-up signal, described from node external host control
Device processed controls described from node LIN transceiver entrance park mode, described from node external host controller
Enter often electricity low-power consumption mode.
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CN103926889B (en) * | 2014-04-03 | 2016-04-27 | 清华大学苏州汽车研究院(相城) | Based on In-vehicle networking power-supply management system and the control method thereof of MOST bus |
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