CN207488748U - For the VCU hardware circuits of new energy electric motor vehicle - Google Patents

Abstract

The utility model discloses a kind of VCU hardware circuits for new energy electric motor vehicle, including charging interface module, A/D conditioning circuit modules, I/O modules and power module, the charging interface module, A/D conditioning circuit modules, I/O modules and power module signal output end be electrically connected respectively with the signal input part of main control singlechip, the main control singlechip is connect with isolated can module communication, and the isolated can module is connected with assistant SCM communication.The utility model advantage is that strong anti-interference performance, reliability are high, at low cost.Program hardware circuit adds the isolation scheme of optocoupler to eliminate many isolation optocouplers relative to single microcontroller, reduce VCU hardware costs, program hardware circuit enhances the interference free performance of main control singlechip relative to double mcu without main control singlechip and external circuit isolation scheme, improves VCU hardware reliabilities.

Description

For the VCU hardware circuits of new energy electric motor vehicle

Technical field

The utility model is related to new-energy automobile circuit field, more particularly, to a kind of VCU for new energy electric motor vehicle Hardware circuit.

Background technology

VCU is responsible for coordinating the work of each parts as the core control part of new energy electric motor vehicle, is to embody vehicle The core technology of enterprise self-determining intellectual property, importance highlight undoubtedly.The hardware circuit of new energy electric motor vehicle VCU has two at present Kind of scheme, the first scheme use main control chip of the microcontroller as circuit, to I/O modules, CAN, and A/D modulate circuits, The each pin of charging inlet circuit uses light-coupled isolation, and this scheme is of high cost, and VCU circuit footprints are big, not economical enough；The Using two microcontrollers, one is used as main control chip for two kinds of schemes, and one is used as companion chip, but not to main control singlechip into Row and external circuit isolation, can lead to operation mistake when VCU is by extraneous strong jamming, make the control signal of VCU output errors, Generate serious consequence.

Invention content

It is high, strong antijamming capability for new energy electric motor vehicle that the utility model aim is to provide a kind of reliability VCU hardware circuits.

To achieve the above object, the utility model can take following technical proposals：

VCU hardware circuits described in the utility model for new energy electric motor vehicle, including charging interface module, A/D tune Manage circuit module, I/O modules and power module, the charging interface module, A/D conditioning circuit modules, I/O modules and power supply mould The signal output end of block is electrically connected respectively with the signal input part of main control singlechip, the main control singlechip and isolated can module Communication connection, the isolated can module are connected with assistant SCM communication.

The utility model advantage is that strong anti-interference performance, reliability are high, at low cost.Using assistant SCM S912ZVCA It is isolated with main control singlechip SPC5644A, SPC5644A as main control singlechip, main control singlechip and external circuit, is substituted Traditional single microcontroller add optocoupler isolation scheme and double mcu without main control singlechip and external circuit isolation scheme, With on new energy electric motor vehicle VCU hardware circuits, 32 microcontroller SPC5644A are as main control singlechip, 16 microcontrollers S912ZVCA includes a CAN physical layer as assistant SCM, S12ZVC microcontrollers, is the integrated form MCU of minimum dimension, S912ZVCA is as the chip for being integrated with the functions such as programmable I/O, AD, then SPC5644A microcontrollers and S912ZVCA microcontrollers It is communicated by isolated can module, program hardware circuit adds the isolation scheme of optocoupler to eliminate relative to single microcontroller Many isolation optocouplers, reduce VCU hardware costs, program hardware circuit relative to double mcu without main control singlechip and External circuit isolation scheme enhances the interference free performance of main control singlechip, improves VCU hardware reliabilities.

Description of the drawings

Fig. 1 is the schematic block circuit diagram of the utility model.

Specific embodiment

As shown in Figure 1, the VCU hardware circuits described in the utility model for new energy electric motor vehicle, including charging interface Module, A/D conditioning circuit modules, I/O modules and power module, the charging interface module, A/D conditioning circuit modules, I/O moulds Signal input part of the signal output end of block and power module respectively with main control singlechip is electrically connected, the main control singlechip with every It communicates and connects from CAN module, the isolated can module is connected with assistant SCM communication.

Claims (1)

1. a kind of VCU hardware circuits for new energy electric motor vehicle, including charging interface module, A/D conditioning circuit modules, I/O Module and power module, it is characterised in that：The charging interface module, A/D conditioning circuit modules, I/O modules and power module Signal output end be electrically connected respectively with the signal input part of main control singlechip, the main control singlechip leads to isolated can module News connection, the isolated can module are connected with assistant SCM communication.