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Nearly all problems that engineers encounter are ill-structured, which means that they have unclear goals and incomplete information. To solve these problems, engineers must first scope the problem by determining what factors are important. These factors not only include technical and scientific aspects, but also include contextual factors such as global, social, environmental, and economic concerns as well as ethical considerations. Learning how to unpack or formulate these ill-structured problems into problems that can be solved is a very important skill for engineers to be successful.

 

Definition of Success: 

Success should be(should be synonym?): making up(Synonym for make up?) but not sure which one) at least half of the market, be more affordable to the public, charging station more accessible, fast charging, and low battery maintenance expense. Currently, an electric car is still very expensive. For instance, the Tesla Model 3 base model costs $38000. [4] On the contrary, you can get a brand new Corolla start from $20000. Besides( What other transitional words can I use other than besides, in addition, moreover, furthermore, additionally, etc.? Please give me more examples) The average mileage per year is 15000-20000 miles and a car usually lasts 10 years. [5] It would be great that no battery replacement is required before 200000 mileage. Also, the charging speed should be less than 15 minutes, and charging stations should cover a wider area, including(including synonym?) both urban and rural areas(areas synonym?)

 

Constraints:

There is a lack of policies that encourage the purchase of new energy cars. Therefore, companies can't collect sufficient funds to facilitate development and can not get enough feedback from costumers for improvement. 

 

Unintended consequences: 

(I do not think there's any negative result for the solution, could you give me an example?)

 

How the problem has been addressed to date.

Some carmakers made the battery capacity bigger. Besides, make battery changeable is a new idea. That means when driving a car to a facility, the robot arm there rises the car and replace a fully charged battery under the chassis and the old battery will be stored in a large charging device and get charged for the next car so that(so that synonym?) people do not need to recharge. 

Current challenges and controversies :

The downsides are that the car became heavier, take up too much place and negatively affect its performance, consume more power, and make the ride uncomfortable. Besides, the fund is limited.