寶馬車娛樂系統(tǒng)采用的是MOST環(huán)形結(jié)構(gòu)，需要特別提出來的是F系列與E系列娛樂系統(tǒng)進(jìn)行改變，將網(wǎng)關(guān)ZGW、組合儀表也納入到娛樂系統(tǒng)，網(wǎng)關(guān)與其他部件的信息傳遞也采用光纖方式，E系列的車型主機(jī)與網(wǎng)關(guān)之間的通信是采用KCAN總線方式傳遞數(shù)據(jù)，在此主機(jī)也扮演者娛樂系統(tǒng)網(wǎng)關(guān)的角色，那么即使MOST光纖系統(tǒng)斷路，主機(jī)及CID還是能夠正常工作。F系列如果有一個(gè)部件出現(xiàn)問題則整個(gè)系統(tǒng)將處于癱瘓狀態(tài)。對(duì)應(yīng)此車故障應(yīng)該是其中的某個(gè)部件不能夠正常工作所致。
BMW's entertainment system adopts the most ring structure. What needs to be specially mentioned is that the F-series and E-Series entertainment systems should be changed. The gateway zgw and combination instrument are also included in the entertainment system. The information transmission between the gateway and other components also adopts the optical fiber mode. The communication between the E-Series vehicle host and the gateway adopts the kcan bus mode to transmit data, The host also plays the role of entertainment system gateway, so even if the most optical fiber system is open circuit, the host and CID can work normally. If one part of F series has a problem, the whole system will be paralyzed. Corresponding to this car failure should be one of the components can not work normally.
為什么啟動(dòng)機(jī)也不運(yùn)轉(zhuǎn)，基于目前的情況啟動(dòng)機(jī)自身出現(xiàn)問題的可能性很小。為了確保一定沒有問題，還是測(cè)量了啟動(dòng)機(jī)的控制線，結(jié)果在按壓?jiǎn)?dòng)按鈕的時(shí)候沒有信號(hào)出來。
Why the starter is not running, based on the current situation, the possibility of problems in the starter itself is very small. In order to ensure that there must be no problem, the control line of the starter was measured. As a result, no signal came out when the start button was pressed.
要達(dá)到什么樣的條件啟動(dòng)機(jī)才能夠運(yùn)轉(zhuǎn)呢？
What conditions should be met before the starter can run?
一，鑰匙數(shù)據(jù)合法性（防盜能夠解除）
1、 Key data legitimacy (anti theft can be removed)
二，制動(dòng)信號(hào)的有 效傳遞
2、 Effective transmission of brake signal
三，變速器擋位在N或者P擋
3、 The transmission is in N or P gear
查閱電路圖（如圖所示），啟機(jī)是由CAS（便捷進(jìn)入及啟動(dòng)控制模塊）控制，那么這3個(gè)信號(hào)一定要真實(shí)有 效地傳遞到CAS里面，它才會(huì)控制啟動(dòng)機(jī)運(yùn)轉(zhuǎn)。燈光能夠正常打開，制動(dòng)燈也能夠點(diǎn)亮，說明這兩個(gè)信號(hào)CAS已經(jīng)接收到。
Refer to the circuit diagram (as shown in the figure), the startup is controlled by CAS (convenient access and startup control module), then these three signals must be truly and effectively transmitted to CAS, it will control the operation of the starter. The light can be turned on normally and the brake light can also be turned on, indicating that the CAS has received the two signals.
