Braking system and electric vehicle

Abstract

The utility model provides a braking system and an electric car. The brake system comprises a brake valve group, the brake valve group comprises a plurality of brake sub-components and a plurality of direct-current voltage output channels, the brake sub-components are used for executing brake control instructions of a vehicle, the first ends of the direct-current voltage output channels are connected with a first direct-current power source, and the second ends of the direct-current voltage output channels are connected with the corresponding brake sub-components respectively so as to supply power to the brake sub-components; the signal input channel comprises a plurality of digital quantity input channels and a plurality of analog quantity input channels, the digital quantity input channels are used for collecting brake digital quantity signals, and the analog quantity input channels are used for collecting brake analog quantity signals; and the signal output channel comprises a plurality of digital quantity output channels and is used for outputting the brake control instruction to the brake valve group.

Description

TECHNICAL FIELD

[0001] The utility model relates to urban rail transit technical field especially, relate to a kind of brake system and a tramcar. BACKGROUND

[0002] The brake system of virtual track tramcar usually adopts integrated electric control unit, for controlling and driving function module. Specifically, the main interface of the brake system can contain 7-way digital input channel, 3-way digital output channel, 6-way AD sampling channel, 2-way speed acquisition channel, 6-way valve driving channel, 2-way Ethernet communication channel, and 4 address jumpers. However, due to the high integration of the electric control unit, the control of each component of the brake system mainly depends on external power input. In addition, due to the small number of brake information input channels, it is difficult to collect sufficient signals, making the brake system less accurate in judging the state of the vehicle. Correspondingly, due to the small number of brake information output interfaces, the control ability of the brake execution valve group is weak, which is not conducive to the implementation of braking.

[0003] In order to overcome the above-mentioned defects existing in the prior art, the utility model urgently needs a brake technology for making the brake valve group more integral and improving the accuracy and control ability of implementing braking. SUMMARY

[0004] The following gives a brief summary of one or more aspects to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all contemplated aspects, and neither is it intended to identify key or critical elements of all aspects nor to delineate the scope of any or all aspects. Its only purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description given later.

[0005] In order to overcome the above-mentioned defects existing in the prior art, the utility model urgently needs a brake system and a tramcar for making the brake valve group more integral and improving the accuracy and control ability of implementing braking.

[0006] Specifically, according to the brake system provided by the first aspect of the utility model, the brake valve group includes a plurality of brake sub-components and a plurality of DC voltage output channels, wherein the brake sub-components are used to execute brake control instructions, and the first end of the plurality of DC voltage output channels is connected to a first DC power supply, and the second end is connected to the corresponding brake sub-components respectively to supply power to them. The signal input channel includes a plurality of digital input channels and a plurality of analog input channels, wherein the digital input channels are used to collect brake digital signals, and the analog input channels are used to collect brake analog signals. The signal output channel includes a plurality of digital output channels, which are used to output the brake control instructions to the brake valve group.

[0007] Further, in some embodiments of the utility model, the brake valve group supplies power to the plurality of brake sub-components via the first connector and is grounded via the second connector, the plurality of brake sub-components include control sub-components and execution sub-components, the brake system further comprises: a plurality of 2A channels connecting the brake valve group via the first connector to drive the control sub-components; and a plurality of 4A channels connecting the brake valve group via the first connector to drive the execution sub-components.

[0008] Further, in some embodiments of the utility model, the signal input channel collects the brake digital signals and the brake analog signals via the second connector, and the signal output channel outputs brake control instructions to the brake valve group via the first connector and the relay.

[0009] Further, in some embodiments of the utility model, the brake system further comprises: a terminal row connecting the relay, the first connector and the second connector via a wire harness and performing intermediate transition and distribution of the wire harness.

[0010] Further, in some embodiments of the utility model, the first connector is a 37-core connector, the second connector is a 37-core connector, the brake system further comprises: a third connector adopting a 5-core connector and connecting the terminal row; and / or a fourth connector adopting a 9-core connector and connecting a CAN channel.

[0011] Further, in some embodiments of the utility model, the brake system further comprises: an internal power module for supplying power to the brake system; an air switch connected in series to a power supply circuit of the internal power module via the terminal row; and an activation switch connected in series to the power supply circuit of the internal power module via the terminal row.

[0012] Further, in some embodiments of the utility model, the brake system further comprises: a second DC power supply connecting the terminal row via the third connector to drive other devices outside the brake valve group in the brake system.

[0013] Further, in some embodiments of the utility model, the brake system further comprises: a plurality of CAN channels for data interaction with a brake CAN network, wherein each of the CAN channels is connected to a plurality of fourth connectors and connected to a controller via a distributor to perform CAN channel hand-in-hand connection.

[0014] Further, in some embodiments of the utility model, the brake system further comprises: an ETH channel connected to a brake ETH network via an ETH connector for ETH communication information interaction.

[0015] Further, the electric vehicle provided by the second aspect of the present application comprises a vehicle body system, which is provided with the brake system according to any one of the first aspect of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above features and advantages of the present application will be better understood by reading the detailed description of the embodiments of the present application in conjunction with the following drawings, in which: the components are not necessarily drawn to scale, and components of similar or identical function or components having similar or identical features are designated by the same or similar reference numerals.

[0017] Figure 1 A structural schematic diagram of the brake system provided by some embodiments of the present application is shown. DETAILED DESCRIPTION

[0018] The embodiments of the present application will be described in detail by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present specification. Although the description of the present application will be introduced in combination with the preferred embodiments, this does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application in combination with the embodiments is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description.

[0019] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] In addition, in the following description, "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical" should be understood as the orientation shown in the paragraph and the related drawings. Such relative terms are only used for convenience of description, and do not mean that the device described thereby needs to be manufactured or operated in a particular orientation, and therefore should not be understood as a limitation on the present application.

[0021] It is to be understood that, although the terms "first", "second", "third", etc. can be used herein to describe various components, regions, layers and / or sections, these components, regions, layers and / or sections should not be limited by these terms, and these terms are only used to distinguish different components, regions, layers and / or sections. Therefore, the first components, regions, layers and / or sections discussed below can be referred to as the second components, regions, layers and / or sections without departing from some embodiments of the present application.

[0022] The brake system of a virtual tram generally uses an integrated electronic control unit to control and drive functional modules. Specifically, the main interface of the brake system can include 7 digital input channels, 3 digital output channels, 6 AD sampling channels, 2 speed acquisition channels, 6 valve driving channels, 2 Ethernet communication channels, and 4 address jumpers. However, due to the high integration of the electronic control unit, the control of the components of the brake system mainly relies on external power input. In addition, due to the small number of brake information input channels, it is difficult to collect sufficient signals, which reduces the accuracy of the brake system in judging the state of the vehicle. Correspondingly, due to the small number of brake information output interfaces, the control ability of the brake valve group is weak, which is not conducive to the implementation of braking.

[0023] In order to overcome the above-mentioned defects existing in the prior art, the present application urgently needs a brake system and a tram for making the brake valve group more integrated and improving the accuracy and control ability of the brake implementation.

[0024] In some non-limiting embodiments, the brake system provided by the first aspect of the present application can be configured in the tram provided by the second aspect of the present application. Specifically, the tram includes a vehicle body system, which is provided with the brake system according to any one of the first aspect of the present application.

[0025] For details, please refer to Figure 1 , Figure 1 The structure of the brake system provided by some embodiments of the present application is shown.

[0026] As Figure 1 shown, the brake system includes a brake valve group, a signal input channel and a signal output channel. The brake valve group includes a plurality of brake sub-components and a plurality of DC voltage output channels, wherein the brake sub-components are used to execute vehicle braking control instructions, and the first end of the plurality of DC voltage output channels is connected to a first DC power supply, and the second end thereof is respectively connected to the corresponding brake sub-components to supply power thereto. The signal input channel includes a plurality of digital input channels and a plurality of analog input channels, wherein the digital input channels are used to collect brake digital signals, and the analog input channels are used to collect brake analog signals. The signal output channel includes a plurality of digital output channels, which are used to output brake control instructions to the brake valve group.

[0027] Specifically, the multi-channel DC voltage output channel can be set as a 12-channel 24V output channel, so that the brake valve group can independently supply power to other sub-components of the brake system without borrowing the power supply of the vehicle, thereby improving the overall performance of the brake system.

[0028] The digital quantity input channel can be set as 20 channels, and the analog quantity input channel can be 8 channels. Here, the analog quantity can include voltage or current type analog quantity signals. The digital quantity output channel can be set as 6 channels.

[0029] In this way, on the one hand, by increasing the number of collection channels, the brake system can fully collect various analog and digital signals required for monitoring, so that the brake system can more accurately judge the state of the vehicle, and then accurately output brake instructions to implement braking. On the other hand, with the increase of the output channel, the brake system can have the control ability of multiple brake valve groups, so that the braking is more synchronous and effective, and the accuracy and control ability of implementing braking are improved.

[0030] In some embodiments, the brake valve group supplies power to a plurality of brake sub-components via a first connector XT4 and is grounded via a second connector XT5. The plurality of brake sub-components includes control sub-components and execution sub-components. The brake system further includes a multi-channel 2A channel and a multi-channel 4A channel. Here, the multi-channel 2A channel can be set as 4 channels, and the multi-channel 4A channel can be set as 4 channels.

[0031] The multi-channel 2A channel connects the brake valve group via the first connector XT4 to drive the control sub-components. For example, the control brake system solenoid valve, the driving current is 2.5A. The multi-channel 4A channel connects the brake valve group via the first connector XT4 to drive the execution sub-components. The brake valve group with larger driving current is suitable for controlling the execution mechanism with higher power demand, and the driving current is 4A.

[0032] In some embodiments, the signal input channel collects brake digital signals and brake analog signals via the second connector XT5. The signal output channel outputs brake control instructions to the brake valve group via the first connector XT4 and the relay.

[0033] In some embodiments, the brake system further includes a terminal row that connects the relay, the first connector XT4, the second connector XT5 via a wire harness, and performs intermediate transition and distribution of the wire harness.

[0034] In some embodiments, the first connector XT4 is a 37-pin connector for output of the power supply of the brake system, output of the brake valve group control quantity, and output of the digital quantity. The second connector XT5 is a 37-pin connector for collection of analog and digital quantities of the brake system, and input of the ground of the brake valve group.

[0035] Further, the brake system further comprises: a third connector XT1, which is a 5-core connector, and connects the terminal array for low-voltage power distribution system main power supply and grounding of the brake system; and / or fourth connectors XT2, XT3, which are 9-core connectors, and connect CAN channels.

[0036] In some embodiments, the brake system further comprises an internal power module, an air switch, and an activation switch. The internal power module is used to supply power to the brake system. The air switch is connected in series with the power supply circuit of the internal power module via the terminal array, and is used for short-circuit protection, control, and isolation when the line current is too large. The activation switch is connected in series with the power supply circuit of the internal power module via the terminal array, and is manually operated when the activation signal of the controller needs to be disconnected or closed.

[0037] In some embodiments, the brake system further comprises a second DC power supply, which is connected to the terminal array via the third connector XT1 to drive other devices outside the brake valve group in the brake system. In this case, the second DC power supply can be set as a 24V low-voltage power supply.

[0038] In some embodiments, the brake system further comprises multiple CAN channels (for example, 4 channels). The multiple CAN channels can interact with the brake CAN network for data interaction. Each CAN channel is connected to a plurality of fourth connectors XT2, XT3, and is connected to the controller via a distributor for CAN channel hand-in-hand connection.

[0039] In some embodiments, the brake system further comprises an ETH channel, which is connected to the brake ETH network via an ETH connector for ETH communication information interaction.

[0040] Although the above methods are illustrated and described as a series of acts, it will be appreciated and understood that the methods are not limited by the order of the acts, as some acts can occur in different orders and / or concurrently with other acts from that illustrated and described herein or in other acts not illustrated and described herein but which would be understood by one skilled in the art.

[0041] The foregoing description of the present disclosure has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. It is intended that the scope of the disclosure be limited not with the examples described herein, but rather with the claims appended hereto.

Claims

1. A braking system, characterized in that, include: The brake valve assembly includes multiple brake sub-components and multiple DC voltage output channels. The brake sub-components are used to execute vehicle brake control commands. The first end of each of the multiple DC voltage output channels is connected to a first DC power supply, and the second end of each channel is connected to a corresponding brake sub-component to supply power to it. The signal input channels include multiple digital input channels and multiple analog input channels, wherein the digital input channels are used to acquire braking digital signals, and the analog input channels are used to acquire braking analog signals; and The signal output channel includes multiple digital output channels for outputting the braking control command to the brake valve assembly.

2. The braking system as described in claim 1, characterized in that, The brake valve assembly supplies power to the plurality of brake sub-components via a first connector and is grounded via a second connector. The plurality of brake sub-components include control sub-components and actuation sub-components. The braking system further includes: Multiple 2A channels, connected to the brake valve assembly via the first connector, to drive the control subcomponent; and Multiple 4A channels are connected to the brake valve assembly via the first connector to drive the actuator sub-component.

3. The braking system as described in claim 2, characterized in that, The signal input channel acquires the digital braking signal and the analog braking signal via the second connector. The signal output channel outputs braking control commands to the brake valve assembly via the first connector and the relay.

4. The braking system as described in claim 3, characterized in that, Also includes: The terminal block connects the relay, the first connector, and the second connector via a wire harness, and provides intermediate transitions and branching for the wire harness.

5. The braking system as described in claim 4, characterized in that, The first connector is a 37-pin connector, the second connector is a 37-pin connector, and the braking system further includes: The third connector, employing a 5-pin connector, connects to the terminal block; and / or The fourth connector is a 9-pin connector and connects to the CAN channel.

6. The braking system as described in claim 5, characterized in that, Also includes: An internal power module is used to supply power to the braking system; An air switch is connected in series with the power supply circuit of the internal power module via the terminal block; as well as The activation switch is connected in series with the power supply circuit of the internal power module via the terminal block.

7. The braking system as claimed in claim 6, characterized in that, Also includes: The second DC power supply is connected to the terminal block via the third connector to drive the equipment outside the brake valve assembly in the braking system.

8. The braking system as claimed in claim 1, characterized in that, Also includes: Multiple CAN channels interact with the braking CAN network for data exchange. Each CAN channel is connected to multiple fourth connectors and is connected to the controller via a distributor to form a daisy-chain connection between the CAN channels.

9. The braking system as claimed in claim 1, characterized in that, Also includes: The ETH Channel connects to the ETH network via the ETH Connector and is used for ETH communication and information exchange.

10. A tram, characterized in that, include: The vehicle body system is provided with a braking system as described in any one of claims 1 to 9.

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