10月7日的DrivePulse: Car Health & MPG应用程序分析

DrivePulse connects to your car's OBD2 port through an ELM327 adapter and keeps your trips, gas mileage, costs, reminders and diagnostics on your phone. Every car and light truck sold in the US since the 1996 model year has an OBD2 port. Miles, mpg, gallons and degrees Fahrenheit follow your phone's region. The home screen shows where you parked, the battery status, your range, what you have spent and how your last trip went. Car, motorcycle or scooter: one profile each, with separate data. WORK TRIPS Mark which trips are for work and the app prepares the report: odometer, distance, expenses and receipts, per trip or per period, in PDF and CSV. It is a record for your employer or your accountant, not a tax filing. FILL-UPS AND RECEIPTS When the fuel level goes up, the app sends you a notification with the fill-up already entered, and you save it with one tap. It also works for propane, natural gas and charging in kWh. Or take a photo of the receipt or the pump display: the app reads gallons, price and total and lets you check them before saving. AUTOMATIC TRIPS With the adapter plugged in you don't press anything: the trip starts when you start the car and ends when you turn it off. Each trip has the route on a map colored by speed, duration, distance, cost, temperatures, battery and range. If you stop for gas or lunch, pause it: the trip resumes when you say so and stays a single trip. The history keeps expenses and favorite places. DRIVING TIPS Besides the score, the Eco Score tells you what to change: large on the car's screen and in Driving analysis on the phone. At the start of a trip, with a cold engine, it counts for less, because fuel use says little then. CAR HEALTH Battery, engine, temperatures, DPF and DEF (AdBlue) in green, yellow or red, with a sentence that explains. A value not read yet stays empty instead of turning into a zero. PARKING When you get out, the app saves where you left the car and walks you back to it. GAS AND COSTS Distance, fuel spending, mileage in mpg, L/100 km or km/l (kWh on electric cars), Eco Score and estimated savings. The score rewards efficiency, never speed. Monthly or yearly summary to share. REMINDERS Insurance, registration, inspection and service, by date or by mileage, handy with a lease too. From the VIN the app works out the vehicle details. CARPLAY AND SIRI From CarPlay you start and end trips and look at the dashboard, which you choose. With Siri: "Hey Siri, start my trip with DrivePulse", and the same for pause, resume and end, also from Shortcuts. DIAGNOSTICS (PRO) With an OBD2 ELM327 adapter: the codes behind the Check Engine light explained with what to do, every parameter your engine computer exposes, a guided battery test while the engine starts, DPF regenerations. The app only reads. It does not clear codes, does not reset anything and does not write to the engine computer. One exception: on three European electric models (Citroën e-C3, Fiat Grande Panda, Opel Frontera) a probe you start by hand opens the extended diagnostic session for a moment to re-read one value, then goes straight back. Even there it writes nothing. WHICH CARS Codes, live data and fuel use work on any vehicle with an OBD2 port, gas or diesel. A few readings, like the odometer from the instrument cluster, depend on the brand: where they are missing, the app counts the miles from your trips. NO ACCOUNT, NO SERVER Your data stays on your phone. No ads, no tracking. PRICE Free for 7 days or 15 trips, whichever comes first, with everything on except extended diagnostics (one free reading with the adapter connected). Then a single purchase unlocks everything for good. No subscription. Note: the app only works with an OBD2 ELM327 adapter plugged into the car's diagnostic port. On iPhone the adapter must be Bluetooth LE or Wi-Fi: classic Bluetooth adapters do not connect to an iPhone. Without an adapter, only reminders and manually entered expenses remain, and trips are not recorded.