The Italian brought the Brazilian back to Stamford Bridge from Paris St-Germain in the summer transfer window.
And Luiz has impressed as part of a back three alongside Cesar Azpilicueta and Gary Cahill in the Blues defence.
“I always love football but of course it’s good when you win and the team is doing well,” the 29-year-old told Sky Sports.
“We understand the philosophy, the system. Everyone is giving 100 per cent for the team. The collective comes before the individual.
“We have a connection with [Antonio Conte] and this connection gives us confidence”
Chelsea star David Luiz
“Winning the Premier League is never easy, whether you’re at home or away, the games are always tough.
“It’s good but it’s too early to speak about the title or being favourites. We need to keep working hard every day.
“I think when you understand the plan and the philosophy of the coach, it’s much easier. It’s like when you’re at school and you love to do something, you’re in the advanced class. That’s the key.
“We love football, we understand the philosophy, we have a connection with the manager and this connection gives us confidence. He’s a top manager.”
Conte’s side face Crystal Palace at Selhurst Park this lunchtime looking to make it 11 on the bounce.
Luiz has made 12 Premier League appearances for the Blues this campaign.